What is Dual Channel Memory and Why Does it Matter? (w/ Benchmarks)

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ความคิดเห็น • 763

  • @GregSalazar
    @GregSalazar  6 ปีที่แล้ว +177

    Let me know what you would like to see tested next! Even if it sounds ridiculous, it'd probably make for solid content at the Verge's expense LOL.

    • @peterjansen4826
      @peterjansen4826 6 ปีที่แล้ว +4

      - 3200 MT/s with the sharpest possible timings (Samsung B die, CL=14) vs. 3466 MT/s with mediocre timings (lesser die, CL=16) for Ryzen.
      - Windows vs. Linux performance for cross platform benchmarks. See Phoronix and Hardware Unboxed (Threadripper and Xeon in the case of HU).
      -TR 32C vs Epyc 32C (quadchannel RAM), probably not possible for you but if it would ever be possible...
      How many frames were used for that title regarded comment of yours?

    • @AlfaPro1337
      @AlfaPro1337 6 ปีที่แล้ว +10

      How about dual channel vs quad channel? Productivity apps which do not matter if your system has dual or quad channel?

    • @YUSoDumb1
      @YUSoDumb1 6 ปีที่แล้ว +2

      Hi. If 3 identical sticks are used, would it still run in dual channel mode? Or for instance 2 sticks a1,b1 but different capacities? Interested for setting up 12GB system configs.
      Actually interested only in knowing the 2 stick config, 8+4 gigs. Would it run in dual channel and what problems i could face? Assuming i use the same manufacturer, same timing and speed sticks, just different capacities.

    • @peterjansen4826
      @peterjansen4826 6 ปีที่แล้ว

      ​@@AlfaPro1337
      I suggested the same. He probably doesn't have a Threadripper system yet. You can buy an old Xeon CPU on the cheap but finding an affordable motherboard for it can be a hassle.

    • @kmemz
      @kmemz 6 ปีที่แล้ว +2

      Get your hands on a threadripper CPU and motherboard to do quad channel memory testing, and redo all the testing for dual and single channel on the TR setup so we can compare properly. The first gen threadrippers can be found for fairly cheap now too, I'd be all over that video tbh

  • @snazzy
    @snazzy 6 ปีที่แล้ว +364

    Good ‘ol Single-Channel Stefan.

    • @gravitationalpull1941
      @gravitationalpull1941 6 ปีที่แล้ว +2

      @@ChristofferNelsonG time to leave mac for a more modern OS like Windows or linux

    • @Josh-cw8by
      @Josh-cw8by 6 ปีที่แล้ว +1

      @@ChristofferNelsonG Josh Nelson here. Hello fellow Nelson's.

    • @robertt9342
      @robertt9342 6 ปีที่แล้ว

      Gravitational Pull . Didn't he say he abhors Mac?

    • @gravitationalpull1941
      @gravitationalpull1941 6 ปีที่แล้ว +1

      @@robertt9342 yea somehow i skimmed through it too fast and didn't catch that lol

    • @Aesiris
      @Aesiris 5 ปีที่แล้ว

      Snazzy you are the guy without a mustache but for tech videos

  • @bradmorri
    @bradmorri 6 ปีที่แล้ว +168

    One thing that you did not cover, is that each memory channel requires a fixed amount of time to complete a memory transaction. That time windows is determined by the frequency and the ram timings set in the bios. If the memory channel is operating in its request access window, it cannot service other requests . the end result is that teh CPU is sitting in an idle state waiting for the next chunk of memory data to arrive before it can process the next frame to send to the GPU
    Dual channel and to a larger extent quad channel, allow the PC to interleave memory requests. That means make requests in parallel. a single channel can only do one thing at once but dual channel can service two requests at teh same time. quad channel memory services 4 at a time. the extra data arriving at the CPU gives the threads more things to work on and as a result spend less time sitting idle.
    Apps like cinebench get all ist memory data up front and everything runs out of the cache during the benchmark. The CPU does not need to request memory from the System ram after it starts running. That is why Ryzen performs so well at cinebench.
    Games, for the most part, force a CPU to rely on a regular cadence of fresh memory data deliveries to process the next set of instructions that can be sent to the GPU before it can render a frame. If the CPU is idle waiting on data because the single channel requires 75ns to deliver the data packets from System Ram, it is not doing the work required to create all the instructions needed to create the highest fps that it can create it if the CPU received more regulare deliveries of data.
    Dual Channel memory has the potential to deliver twice as much memory data in a given period of time becase teh two channels can operate in tandem with each other and thus reduce idle time of the CPU, allowing it to send more data to the GPU to render the frames.

    • @rayz0rxxx
      @rayz0rxxx 6 ปีที่แล้ว +12

      k

    • @NikhilSharma-il1ye
      @NikhilSharma-il1ye 6 ปีที่แล้ว +2

      Yep

    • @mochageico
      @mochageico 6 ปีที่แล้ว +6

      Wow, ty. I knew most of this, but I’ll screenshot it anyway

    • @zephyr7
      @zephyr7 6 ปีที่แล้ว +2

      Thanx alot

    • @TWIFAFWTFU
      @TWIFAFWTFU 6 ปีที่แล้ว

      !! Thx~

  • @assassininja5687
    @assassininja5687 6 ปีที่แล้ว +67

    I used to have one stick in my slots when I first moved to DDR4 because of the price of it and noticed a drop in frames from my rig that used ddr3. I didn't realize it was my ram until I did some research on youtube and found that when I did end up purchasing a second stick of memory my frames improved a crazy amount, it was like getting an entirely new PC, I don't remember the margins that were there but they were similar to the ones in this video. To anyone thinking you will be just fine or trying to save money by purchasing just one stick, please try and get another one if you can, it will help you immensely.

    • @TheGyuuula
      @TheGyuuula 6 ปีที่แล้ว +4

      Steve (from Gamer'sNexus) disagrees. Unless you have an integrated GPU, games are rarely bottlenecked by memory bandwith. It's more likely you didn't have enough memory to begin with.

    • @eagleeye8916
      @eagleeye8916 6 ปีที่แล้ว +2

      Well that was a noob mistake. You buy them in pairs and install it in pairs.

    • @TheGyuuula
      @TheGyuuula 6 ปีที่แล้ว

      @@eagleeye8916 Keep in mind, that the more DIMMs you have in your PC, the harder it will be on the memory controller. Especially, if you have dual rank memories.
      I had 2*4Gb 1866 Mhz dual rank Corsair memory installed in my PC. A few years later I bought 2 more module, but the FX's IMC can't handle that speed with 4 module, and I had to downclock my memory. With a little overvolting and playing with the BCLK, I managed to pump it up to 1800 Mhz, but it's borderline unstable.
      *My advice*: If you can't or don't want to buy 16Gb memory, get a single stick of 8 Gb, preferably single ranked module of a popular brand. It will cause you less headache, when you have to upgrade your memory capacity.

    • @eagleeye8916
      @eagleeye8916 6 ปีที่แล้ว +1

      @@TheGyuuula 16gb ram (2x8gb) is the minimum for a gaming pc going into 2019. They can range from $100 -200 depending of brand and speed. Extra ram is usually for photo editing , animation , video editing etc. They should be able to afford it being the hardware for that platform is in another premium price point by itself . Like how I bought pairs of 2x4gb for an older MacBook pro . If I was short it take me the next pay check which only cost me like $60 at the time

    • @TheGyuuula
      @TheGyuuula 6 ปีที่แล้ว

      @@eagleeye8916 wrote: "They should be able to afford it"
      It *depends* :D Here in East-Europe, a modern gaming PC (~1000$) is quite a luxury. People would rather spend it on a used car or something practical. Or think of a student on a tight budget. If you have to skim on the memory, buy a bigger capacity module - rather than 2x half the size - and buy a second module later. I think for AAA games, 16Gb might not suffice in just 1 or 2 year. So, staaay awaaay from the 4Gb parts.

  • @sweetnlow10
    @sweetnlow10 6 ปีที่แล้ว +125

    The verge said something else idk what to believe

    • @A.Froster
      @A.Froster 6 ปีที่แล้ว +11

      Clearly NOT the verge

    • @azizx2796
      @azizx2796 6 ปีที่แล้ว +2

      Braden Sweeten you should trust the verge because they used a fancy cpu application tool. Clearly they know what they are doing.

    • @Oriaks
      @Oriaks 6 ปีที่แล้ว +1

      @@azizx2796 They didn't use it though.

    • @A.Froster
      @A.Froster 6 ปีที่แล้ว +1

      @Nacho Ruiz Plz don't make it worse than it already is. I get cancer from this every single time i remember that video

    • @mochageico
      @mochageico 6 ปีที่แล้ว

      The verge is made fun of everywhere tech wise
      So
      The answer is clear
      Choose geico

  • @carsman4242
    @carsman4242 6 ปีที่แล้ว +342

    The Verge gives you a thumbs down

    • @themixgenius1993
      @themixgenius1993 6 ปีที่แล้ว +15

      15 The Verge employees give him a thumbs down.

    • @zoomer1673
      @zoomer1673 4 ปีที่แล้ว

      Frenz Vargas 119

    • @SirMisterGD
      @SirMisterGD 4 ปีที่แล้ว

      158

    • @johnmundge647
      @johnmundge647 2 ปีที่แล้ว

      @@themixgenius1993 and those 15 agree on your comment with a thumbs up 😂😂😂

  • @Ametisti
    @Ametisti 6 ปีที่แล้ว +14

    I'd been running in single channel until the whole The Verge thing, since I'd switched from a board with 2 slots to 4, and just putting my sticks in the first two slots... Switched 'em to dual channel after that though. XD

  • @tonkatoytruck
    @tonkatoytruck 6 ปีที่แล้ว +106

    You should do quad channel vs dual channel next and see if 32 vs 64gb really is worth the cost adder, and if you do increase the amount of memory, should it be more gb per stick or more sticks? Is more really better? I really like my Samsung B die @3200MHz CAS14 (2x8gb) Team Force Group Dark Pro (single rank). A video on Samsung vs Micron vs Hynex would be enlightening, for many, as well. Keep up the good work. It is appreciated.

    • @GMT-
      @GMT- 6 ปีที่แล้ว +8

      you mean GB not mb right?

    • @bradhaines3142
      @bradhaines3142 6 ปีที่แล้ว +5

      @@GMT- funniest part is he made the same mistake TWICE IN A ROW

    • @jimmymartin
      @jimmymartin 6 ปีที่แล้ว +3

      @@bradhaines3142 he must've found one of the mistakes but I still see one of them😂
      But dual vs quad channel would be a good video

    • @tonkatoytruck
      @tonkatoytruck 6 ปีที่แล้ว +1

      @@jimmymartin Dual.......... haha

    • @HendricP
      @HendricP 6 ปีที่แล้ว +2

      i9-9900K can't do quad channel

  • @zygimantasbalcius7209
    @zygimantasbalcius7209 6 ปีที่แล้ว +3

    I added one more 8gb stick in my rig for dual channel and can definitely noticed the improvement in games and overall usage of pc, 100% worth it.

  • @MoneyMaking861
    @MoneyMaking861 6 ปีที่แล้ว +82

    I found the same results in my tests...It does make a difference.

    • @marcleblanc3225
      @marcleblanc3225 6 ปีที่แล้ว +2

      Cool, the reality is it doesn't though. Games don't hit memory bandwidth limits, Gamers Nexus did extensive testing on this.

    • @MoneyMaking861
      @MoneyMaking861 6 ปีที่แล้ว +8

      @@marcleblanc3225 Yes it does! You will have will have 20more fps in dual channel mod vs single in games like total war, and assassins creed that are more cpu intensive with a gtx 1070 for example.
      40fps vs 60fps is a big difference.

    • @marcleblanc3225
      @marcleblanc3225 6 ปีที่แล้ว

      @@MoneyMaking861 this has been extensively tested by other people. I'm talking significantly more so than the testing done in this video. The differences between dual and single channel for gaming were found to be negligible at best. I suspect there's something else that's been overlooked in this video.

    • @MoneyMaking861
      @MoneyMaking861 6 ปีที่แล้ว

      @@marcleblanc3225 Like this one? th-cam.com/video/kCg7eVN6N9w/w-d-xo.html
      Do it on your pc You'll see..

    • @sav22rem22
      @sav22rem22 6 ปีที่แล้ว

      Victor Ov It does make a huge difference you’re right. It’s been proven time and time again that single vs dual channel makes a huge difference

  • @-DeScruff
    @-DeScruff 6 ปีที่แล้ว +7

    Im actually kinda surprised at those differences.
    Ive built at least two systems this year for friends with only a single stick of 8GB, with the idea that they would upgrade to 16GB when prices finally go back down.
    I always heard the difference was negligible, but now Im wondering...

  • @AdmitthatijustdiditX
    @AdmitthatijustdiditX 6 ปีที่แล้ว +8

    Literally ordered a second stick minutes before watching this video, I guess it was definitely a good idea! I also needed more since I was on only 4gb. Now I'll be 2x4gb ddr3 1600 for my Ivy bridge system. I've also seen even on ivy bridge i5's that frequency can make quite a difference in performance.

  • @QuickshotGaming
    @QuickshotGaming 6 ปีที่แล้ว +24

    How does having 16 gb's via 2 dimms effect performance compared to 16 gb's via 4 dimms? How does the memory controller handle the extra sticks and how does that effect frequency and timings?

    • @andrewpowell1462
      @andrewpowell1462 6 ปีที่แล้ว +1

      To my knowledge, there's little to no difference as long as the 2 dimms are in dual channel. I'm not sure on your question about frequency and timings but i would assume there would be no difference there either. Damn it, now you got me wondering. Haha

    • @QuickshotGaming
      @QuickshotGaming 6 ปีที่แล้ว

      Pandy Owl I know that 4 dimm kits cost more than 2 dimm kits for the same timings and frequency, so I assume there's additional binning that occurs. One of the criticisms of Principled Technology was they used 4 dimms on which I guess exposes a weakness in Ryzen's memory controller? It was also common last year during the crypto craze to recommend people get 8 gb's and buy more when prices dropped.

    • @TheSilviu8x
      @TheSilviu8x 6 ปีที่แล้ว

      It's common to think that four modules are bad, bicause you can't ad more ram (32gb). But actually for the most part 4x4gb is faster(enough to favor them against 32gb) and enough for gamers.

    • @truedarklander
      @truedarklander 6 ปีที่แล้ว

      @@TheSilviu8x 4x4 has the same speed as 2x8 on Ryzen since it has a dual channel controller

    • @samiraperi467
      @samiraperi467 6 ปีที่แล้ว +2

      @@truedarklander It's not that simple. Sure, in everyday use there's no difference. However, depending on the topology the maximum speed may suffer.

  • @enovationsgr
    @enovationsgr 6 ปีที่แล้ว +10

    Perhaps the reason why other tests do not reveal big differences between single vs dual channel ram configuration is the number of CPU cores and CPU speed. Keeping the CPU threads fed with data requires RAM bandwidth and it should make a difference if you are testing with a 4core/8thread or a 8core/16thread CPU. I am not sure what CPU was used in Gregs testing. Since I saw a Z390 mobo, I assume a i9 9900k 8core/16thread CPU, which in fact is the CPU that would make the most out of dual channel configuration as of today. If other testers used lower end CPU can explain why their results do not show big differences.

    • @bueb8674
      @bueb8674 6 ปีที่แล้ว +1

      He did show the specs, yes it was a i9 9900k . I'd also like to see the same test done with lower end, as you said the number/speed of cores would also play a factor in whether single vs dual would make a difference. For example I highly doubt a 2 core 6th gen i3 would need dual channel

    • @kognak6640
      @kognak6640 6 ปีที่แล้ว +2

      Not really about CPU speed but rather GPU speed. Single vs dual channel won't show difference if you have GPU bottleneck. Pretty much all performance aspects considering system memory, channels, timings, clock speeds require elimination of GPU bottleneck if they are going to have impact on overall performance. The other test mentioned used lowly GTX1070, framerates were much lower what 8700k(cpu of test) can do.
      Large number cores have no relevance, workload in games don't scale with number of cores. If it does(too few cores), then your cpu is badly congested and game is stuttery mess. Doesn't matter what kind of memory you have.

  • @MistahMOB
    @MistahMOB 6 ปีที่แล้ว +10

    I like the Paul's Hardware style setup my dude 🙏 desk, monitors, PCs, lighting look GOOD

  • @doggaki
    @doggaki 6 ปีที่แล้ว +1

    Tremendous work!! Thanks for the info!!
    Happy holidays!!!!

  • @giorx5
    @giorx5 6 ปีที่แล้ว +1

    Merry Christmas to you too! Nice video. Anyone involving with PC building knows that dual memory is a must. But for newcomers to the subject those videos are useful.

  • @rajumiah1501
    @rajumiah1501 5 ปีที่แล้ว

    I am extremely confused, I feel like this guy is lying to us, alot of the other videos and channels I see show little FPS increase, but this guy is saying 40%, idk who to believe tbh.

  • @chanakyanani
    @chanakyanani 5 ปีที่แล้ว

    How much would be a performance increase for games between 1x4gb+1x8gb ram and 2x8gb ram for AMD radeon vega 3 iGPU and Ryzen 3 CPU? Given the CPU and GPU are low level, would increasing the ram to 2x8gb make any difference? would it be worth investing?

  • @darg682
    @darg682 5 ปีที่แล้ว

    I have a Z97 Sabertooth MK2 and the two right dimms won't work, so I've been forced to game with single channel for 2 years now. I cant base what it's like to play games on my system with dual, but...

  • @ronniepaulinc
    @ronniepaulinc 5 ปีที่แล้ว

    Long story short, it matters!! If you can run them in Dual Channel!

  • @Yeasir.AraFath
    @Yeasir.AraFath 5 ปีที่แล้ว

    Sir
    4×2GB ddr4 or 16GB ddr4?
    which one?
    im not a gamer
    im a graphic designer

  • @hazemhozien359
    @hazemhozien359 5 ปีที่แล้ว

    I will buy :
    Asus ROG X570 Crosshair VIII Hero (Wi-Fi) Or msi ace 570
    So better ram 4x8 or 2x16
    G.SKILL Trident Z Neo (For AMD Ryzen)3600hrtz

  • @GreatFilmsPH
    @GreatFilmsPH 5 ปีที่แล้ว

    I still dont get it. If I bought Msi Ace x570 that says it supports dual channel, does it mean I can't buy 2x of trident z neo ram 2x8gb 3200mhz cl16 for a total of 4 ram sticks and 32gb ram?

  • @cosmacosma3795
    @cosmacosma3795 5 ปีที่แล้ว

    can i put dual channel 2 rams: one hyperx ddr4 3000mhz cl15 and the other hyperx ddr4 3200mhz cl16 both 1.35v

  • @dragos5640
    @dragos5640 5 ปีที่แล้ว

    I made the mistake and bought 16gb single channel...

  • @stupidreligionz
    @stupidreligionz 5 ปีที่แล้ว

    hey man, im noob to these kind of things. What about Dual channel vs Quad channel? Quad Channel better?

  • @qee540
    @qee540 5 ปีที่แล้ว

    if both my CPU and board support up to 2666 RAM speed, should I be getting a 3200MHz if am going to upgrade every 5 years?
    Which will be cost effective in the long run?
    buy 2666MHz RAM ?
    or
    3200MHz RAM?

  • @ZevFei
    @ZevFei 5 ปีที่แล้ว

    Right now I using 8GB ram kingston hyperxfury, I just ordered another 8GB ram to make it dual channel!! I can't wait!!!

  • @JayzBeerz
    @JayzBeerz 5 ปีที่แล้ว +1

    I tried to download more RAM and it didn't work. Can you help me?

  • @wathsalamelan8031
    @wathsalamelan8031 5 ปีที่แล้ว

    Hi Bro can you help me whats the best ram kits for this motherboard Gigabyte h170

  • @baesikstreams5431
    @baesikstreams5431 5 ปีที่แล้ว +2

    Im here running memory diagnostic... and i look over to my pc window and see both ram sticks right next to eachother 😅

  • @raymondxu2922
    @raymondxu2922 5 ปีที่แล้ว

    I currently have 2 x 4GB of RAM and need an upgrade. Would it make sense to buy 2 x 8 GB and add them to the remaining slots or just switch them out?

  • @WoodroHidro
    @WoodroHidro 5 ปีที่แล้ว

    Which is better for 32gb of ram on a ryzen 3000 system, dual or quad channel?

  • @mbahmarijan789
    @mbahmarijan789 5 ปีที่แล้ว

    what about quad channel?

  • @VijayKanta
    @VijayKanta 5 ปีที่แล้ว

    Very good info here for the computer newbie.

  • @ryangaming2402
    @ryangaming2402 5 ปีที่แล้ว +1

    1 and 3
    or
    2 and 4?
    is there a difference? just curious

  • @computeremail9063
    @computeremail9063 5 ปีที่แล้ว

    using dual channel

  • @ginoweinberg1013
    @ginoweinberg1013 5 ปีที่แล้ว

    im using asus h370, a2/b2 slot as well or a1/b1?

  • @perrolokofan2011
    @perrolokofan2011 5 ปีที่แล้ว

    Hey nice video. I have a question: if i buy two single channel ram modules and put them in the right slots, would work like dual channel?

  • @ChfHappySack
    @ChfHappySack 5 ปีที่แล้ว

    I built a secondary gaming/streaming pc with a dell optiplex 7010. Unfortunately, The A2 dimm slot is dead. I've tried blowing out the dimm with canned air and I've reseated the stick like 10 times. Every time I powered on the pc, I'd get the flashing amber light indicating a ram issue. So again unfortunately, I'm forced to use single channel. I have 2 sticks of 8gb ddr3 totaling 16gb. One stick in A1 and the other in B1. I can play games just fine with the 1050ti, but it's super annoying knowing I could be getting 10-20 more fps if the damn dimm wasn't dead. BUT, I am gaming comfortably on it 1080p 45-60fps depending on settings. For those of you looking to game on a budget, I would recommend going this route but beware of issues like this. Also there's no room for upgradeability so buy this knowing it is what it is.

  • @wolverineiscool7161
    @wolverineiscool7161 5 ปีที่แล้ว

    hey can I get both single channel and dual channel in the same rig? or is it counter productive and defeats the purpose?

  • @wolverineiscool7161
    @wolverineiscool7161 5 ปีที่แล้ว

    Okay got it....
    single channel - better for software like premier pro...much better
    dual channel - better for gaming...but just gaming.

    • @Link500X
      @Link500X 5 ปีที่แล้ว

      the premier pro graphs was render time (seconds) - lower is better. so, dual channel is still much better

  • @wolverineiscool7161
    @wolverineiscool7161 5 ปีที่แล้ว

    so the crux of this video is dual channel is better?...for the most part anyway. Why though?

  • @LifeScienceArpan
    @LifeScienceArpan 5 ปีที่แล้ว

    but now you have to pay more for 8×2 than 1×16 so its the same pay more get more

  • @Bobcat665
    @Bobcat665 5 ปีที่แล้ว

    LMAO! You're never going to let The Verge live it down, will you, Greg? No worries: They don't deserve the 'forgive & forget'. They need to have their noses rubbed in it forever.

  • @ElderlyAnteater
    @ElderlyAnteater 5 ปีที่แล้ว

    will this affect rainbow six siege performance?
    (i5 6400 is bottlenecking my 970)

    • @ohyeahyeah4916
      @ohyeahyeah4916 5 ปีที่แล้ว +1

      S am yes it lowers the bottleneck and you get higher fps

    • @ElderlyAnteater
      @ElderlyAnteater 5 ปีที่แล้ว

      @@ohyeahyeah4916 thanks man

  • @jluis5188
    @jluis5188 5 ปีที่แล้ว

    00:45 did you pull a verge putting both rams in the two left slots?

  • @YtG37
    @YtG37 5 ปีที่แล้ว

    I'm learning!!!!!!

  • @Sam-fd4ru
    @Sam-fd4ru 5 ปีที่แล้ว

    So... if you want an extra 10 - 20 Fps, use Dual Channel?

  • @TheRealZewkz
    @TheRealZewkz 5 ปีที่แล้ว

    Enable xmp in ur bios and set ur ram speed to the speed your ram can run to and congrats on 100+ fps

  • @snackymcgoo1539
    @snackymcgoo1539 5 ปีที่แล้ว

    I am confused. I have ASUS Prime Z390-A. It has 4 slots, but says Dual Channel Configuration. I guess I have a few questions. It seems less expensive to buy two separate kits of 3200mhz 16 cl, each has 2x8 for a total of 32gb ram at 3200mhz. Vs more expensive option of a single kit of 3200mhz 4x8. Manufacturer warranty does not cover 2 identical but separate kits to run at 3200mhz and cl 16 (2x8+2x8) = 32gb 3200mhz total. But had I spent a boat load MORE for a 4x8 kit at 3200mhz speed, they would be warrantied to operate as such. What is all of your understanding with this?

  • @Simmymind360
    @Simmymind360 5 ปีที่แล้ว

    I don't have a choice but to run single channel ad my dual channel is not working as end slot does not read ,I'm going to replace motherboard

  • @soju69jinro
    @soju69jinro 5 ปีที่แล้ว

    @ScienceStudio, some motherboard do not have B2/A2/B1/A1 lineup, my motherboard has it set as B2/B1/A2/A1. Before you just carelessly state "oh don't do it like what he did" you should verify whether or not some motherboards hold up that way. Even I thought was for dual channel you'd have to do one spacing apart, but it turns out some motherboards have it adjacent.

  • @onixtheone
    @onixtheone 5 ปีที่แล้ว

    My Lenovo 330s has a 4gb soldered ram already in place and an open slot for some more, should I get another 4 gig stick or spend the money for a 16 gig stick?

  • @furrynick
    @furrynick 5 ปีที่แล้ว

    I have four memory kits 8GB each for a total of 32GB. Same memory kits same brand same specs same everything. I was not aware when I bought them that they recommend to buy them together if you doing either 2 or 4 memory kits configuration and instead I bought two sets of two 8GB chips box separate for a total of 32GB . If i'm doing 4 kits of memory does it matter where I place them since I didn't buy a single set of four rams and instead I bought two sets of two rams each? even though they are the same brand same specs and everything their serial number is deferent because they were not bought together. This are the memory that I bought at new egg I bought two of this set. TridentZ RGB Series.
    Any advise would be greatly appreciated.
    www.newegg.com/g-skill-16gb-288-pin-ddr4-sdram/p/N82E16820232483?Item=N82E16820232483

  • @ENunn
    @ENunn 5 ปีที่แล้ว

    my pc won't boot in dual channel so suck it :)))))) single channel for life :)))))))))
    no really i can't boot in dual channel it kinda blows :((((((((

  • @andrewe3165
    @andrewe3165 5 ปีที่แล้ว

    what are the considerations for putting two sticks in dual channel? They have to be identical??

  • @philipmorris438
    @philipmorris438 5 ปีที่แล้ว

    What I don't get is, If I wanna put 16gb on a dual channel mboard, should I put 2x8gb ram, or 2x4gb+2x4gb. What's better?

  • @thewebheadgt
    @thewebheadgt 5 ปีที่แล้ว

    My laptop has 4gb ram. I'm planning to add an 8gb stick to it. So I'll have a total of 12gb of memory. Should i do it?

  • @NeoMatrix14241
    @NeoMatrix14241 5 ปีที่แล้ว

    Why my metro exodus stutter in gtx 1050 ti/i5 7500/x1 hyperx fury black ddr4 2400mhz 8gb? 1080p medium settings only I don't use SSD

    • @geoffdb8118
      @geoffdb8118 5 ปีที่แล้ว

      GPU not strong enough

  • @4nd3rzzon
    @4nd3rzzon 5 ปีที่แล้ว

    I had to do a verge because my 212 evo blocked the ramslots

  • @stefancandrea
    @stefancandrea 5 ปีที่แล้ว

    2:77 - That guy was Single Channel all the time :))) Check the manual for Dual-Channel configurations man !! I know manuals are boring, but still, use it when you know that you are an idiot !

  • @MRD0889
    @MRD0889 5 ปีที่แล้ว

    Thank you sir.. new to pc and, this just helped me with my FPS all over the pace on insurgency sandstorm. Finally !

  • @capitaldd5840
    @capitaldd5840 5 ปีที่แล้ว

    Great video...helps the average person(me) better understand the difference. Nice dig on The Verge by the way..👍

  • @PHN1998
    @PHN1998 5 ปีที่แล้ว

    hi, i also own a z390 motherboard, i want to know, how dual channel compared to quad channel on this motherboard. i currently have 2x8gb ram, i don't know whether to upgrade 4x8gb ram or 2x16gb ram anymore (2x16gb ram seems more strenuous to me)

  • @Kugal83
    @Kugal83 5 ปีที่แล้ว +7

    I feel so guilty because i have been using single channel for 2 years and just now switched to dual after watching this video.

    • @rubaiyatmehedi9337
      @rubaiyatmehedi9337 5 ปีที่แล้ว

      Lamo

    • @malecrium8665
      @malecrium8665 5 ปีที่แล้ว

      How much do your games play better now?

    • @medqua
      @medqua 4 ปีที่แล้ว

      Is it better now?

    • @Kugal83
      @Kugal83 4 ปีที่แล้ว

      @@medqua oh yes im stable after all this time still so im happy and will buy more ram later.

  • @hjups
    @hjups 6 ปีที่แล้ว +11

    I think you oversimplified it a bit and missed out on an important point... The content in the Dual Channel DIMMs is not mirrored, so it's not just higher bandwidth. A better analogy is single channel behaving like a single HDD, while dual channel behaves like two HDDs in a Raid 0 configuration. In the highway example, it's more like single channel is one highway going east to NYC, and dual channel is another highway in parallel going east to Philadelphia. The numbers of lanes per highway is the same in both examples, so in theory there is more bandwidth, but a car on the Philadelphia highway will never be able to reach NYC.
    I'm not sure how windows lays out the memory map, but it most likely alternates pages between the two channels, which if each thread is allocated its own page, then the benefit is pure bandwidth. As you said, it depends (what memory is being accessed, how many times, how frequently, etc.).
    I did some research on this the other day, trying to understand the difference from an electrical perspective. It turns out that it's pretty simple: single channel vs dual channel is 1 memory controller vs 2 memory controllers, each with their own address, command, and data lines. So a CPU that supports dual channel will have a DQA and a DQB bus. In terms of DIMM slots, for multiple slots on a single channel, each DIMM has their own set of clocks and chip-select lines, but everything else is shared within the same channel. So A1 and A2 will have the same DQA lines, and AdrrA lines, but will have CLK0 + CLK1 and CLK2 + CLK3, respectively. Each DIMM has 2 clock lines and 2 chip-select lines, to handle single rank (1 sided) vs dual rank (2 sided), where each rank has its own chip select and clock. Additional chip selects are only helpful for capacity (since two chip selects effectively add 1 bit to the physical address space), because transactions (reads or writes) cannot be run in parallel on the same memory channel (hence the benefit of dual channel). Unfortunately, that means that when not doing burst transfers, the memory bus is mostly inactive waiting for the RAM to be ready with the value to read.

    • @mtunayucer
      @mtunayucer 6 ปีที่แล้ว

      hjups as far as i know dual channel ram works exacly like raid 0.

    • @hjups
      @hjups 6 ปีที่แล้ว

      ​@@mtunayucer I'm pretty sure it's a little more complicated than that, but it's a close enough analogy from an IT perspective. In reality, it depends on a lot of technical details of the implementation (bus topology, physical address mapping, software page mapping, etc.). Also keep in mind that hard drives don't map to address space like memory does, they're typically controlled by DMA engines, and some registers.

    • @apidas
      @apidas 6 ปีที่แล้ว

      jeez you need to make your own youtube channel

    • @BlackEagle352
      @BlackEagle352 6 ปีที่แล้ว

      Thanks for the info.. everything's not the same, everything is a bit more complicated if you take it as such.

    • @nitish0159
      @nitish0159 6 ปีที่แล้ว

      It's more like a highway with double the lanes than two highways heading in opposite directions...

  • @adamrasmussen9939
    @adamrasmussen9939 6 ปีที่แล้ว

    Ha, The Verge dude. My friend (who has built systems, but not in 7 or 8 yrs) and I built my first rig 2 days ago. He was mildly upset we didn't hit any real roadblocks. Biggest hurdles were enabling proper RAM speed, 3000mhz, and splitting the data from one mechanical drive onto an SSD and a second new mechanical drive, mainly cuz I'm kinda thick, and was tired by that point.

  • @vsaucepog7829
    @vsaucepog7829 6 ปีที่แล้ว

    Love your vids,been watching em for a while,i reached a better understanding of computers!

  • @iamcablegi2010
    @iamcablegi2010 6 ปีที่แล้ว

    I knew all this but still enjoyed the video! Thanks.... And happy holidays!

  • @sciencestudio2812
    @sciencestudio2812 6 ปีที่แล้ว +295

    @everyone PUBG?

    • @mjc0961
      @mjc0961 6 ปีที่แล้ว +13

      williamhumphreys No thanks, that game runs poorly and due to bad business practices of the developer, nobody should purchase it.

    • @jamesisaac7684
      @jamesisaac7684 6 ปีที่แล้ว +4

      @@mjc0961 if you are playing fortnite. It's like pot calling kettle black.

    • @FuneralParty-rsf
      @FuneralParty-rsf 6 ปีที่แล้ว +1

      @@mjc0961 There is still free PUBG mobile through Bluestack.

    • @BlackgoldTwinduck
      @BlackgoldTwinduck 6 ปีที่แล้ว

      trash garbage ass game

    • @pewnice92
      @pewnice92 6 ปีที่แล้ว +2

      @@mjc0961 It runs fine if you have a decent setup

  • @scorpiokc
    @scorpiokc 6 ปีที่แล้ว +158

    But your thumbnail is a triple channel memory Kappa

    • @Corei14
      @Corei14 6 ปีที่แล้ว +8

      x58 systems. Those are still good for games.

    • @delivanov252
      @delivanov252 6 ปีที่แล้ว

      😱

    • @eddycepeda9762
      @eddycepeda9762 6 ปีที่แล้ว +2

      Lga 1366 getting a shout out is rare..... hooray

    • @debravalreyes2033
      @debravalreyes2033 6 ปีที่แล้ว +1

      Don't think outside the box

    • @asandax6
      @asandax6 4 ปีที่แล้ว

      Yeah the thumbnail is on the verge of Hilarious,🤣🤣

  • @at_the_speed_of_life8536
    @at_the_speed_of_life8536 6 ปีที่แล้ว

    good video. ive got dual channel samsung b die for my ryzen 1700 i built last year. it was a headache making sure i got the best possible memory for the rig.

  • @Zepheus_
    @Zepheus_ 6 ปีที่แล้ว +2

    how about the performance difference between 8x2 dual channel or 4x4 dual channel? having fully populated ram looks good though. is there any downside to that?

  • @techfan7808
    @techfan7808 6 ปีที่แล้ว +1

    So, have you compared different workloads using Single Channel, vs dual channels, vs T - Topology? Maybe some video rendering, vs database workloads etc? I few like those would give a better picture.

  • @mercerworldtravels5980
    @mercerworldtravels5980 3 ปีที่แล้ว

    I love the way you edit your videos.

  • @TheGravyMonster
    @TheGravyMonster 6 ปีที่แล้ว

    I just wanted to raise one point re. the slots you used. At 1:22 you said that the motherboard required you to use slots A1 and B1 for dual channel (and shows the sticks in that configuration), yet the BIOS warning at 6:14 tells you to use A2 and B2 for dual channel.

  • @chillstep4life
    @chillstep4life 6 ปีที่แล้ว

    Very good and informative video. Thanks Science Studio!

  • @jimg.9198
    @jimg.9198 6 ปีที่แล้ว

    Have seen most pre-builds with one 8 gb module in single channel. Almost all self-builds are dual channel. Great video, thanks and Merry Christmas Greg!

  • @marcoconejo200
    @marcoconejo200 4 ปีที่แล้ว

    Great channel! I have a question, do I need the exact ram of the same brand to activate dual channel? Or I can use rams from different brands?

  • @hyperdriverr
    @hyperdriverr 6 ปีที่แล้ว +4

    On ryzen this makes a really big difference. In games you gain more by overclocking ram than overclocking the cpu.

  • @kristiqnkolev5142
    @kristiqnkolev5142 6 ปีที่แล้ว

    Very informative video as always.

  • @Lardzor
    @Lardzor 6 ปีที่แล้ว

    @1:30 you say that slots A1 and B1 are optimal for dual channel, but @6:10 the BIOS/UEFI warning message clearly shows the recommended dual channel configuration should have RAM installed to slots A2 and B2. It likely makes little difference so long as the RAM is installed onto separate channels, I just thought I'd point out the inconsistency in the video.

    • @kaseyboles30
      @kaseyboles30 6 ปีที่แล้ว

      It depends on the motherboard. In a lot of cases a2/b2 is superior. In some cases it won't matter, And in a few rare cases it's a1/b1. It's possible this is one of the latter and the bios has a lot of re-used code that doesn't reflect that.

  • @GameplayandTalk
    @GameplayandTalk 6 ปีที่แล้ว

    Interesting stuff, I wouldn't have guessed the differences would have been that big.

  • @kylemccoy7249
    @kylemccoy7249 6 ปีที่แล้ว

    I remember asking that question on your stream. Thanks for the more elaborated explanation.

  • @waczze
    @waczze 6 ปีที่แล้ว +1

    I was promoting dual-channel memory configuration to my friends and families since the Core 2 Duo lineup. I am surprised that the difference in current-generation-PC gaming is so humongous. :O

  • @fabiokelm
    @fabiokelm 6 ปีที่แล้ว +1

    Nice video, Greg! Steve from Hardware Unboxed made a comparison of RAM and saw that the game caches and give different results by each pass, did you see something similar? Maybe first allocation is worst with less channels, but reading after is not that sensitive to the bandwidth. In any case, I am just curious on the test methodology. Thanks for the video.

  • @Filib
    @Filib 6 ปีที่แล้ว +1

    Slots A1 and A2 aren't working on my msi b250 pro-vdh

  • @s.h.5726
    @s.h.5726 6 ปีที่แล้ว +23

    Wait a minute, you recommend A1/B1 for dual channel but later in the video the bios recommend A2/B2. Time to re-test! ;)

    • @3rdpers0n
      @3rdpers0n 6 ปีที่แล้ว +8

      though that when i saw the ram at the start, most mobos have it at the second and fourth slot.

    • @poofypoof6508
      @poofypoof6508 6 ปีที่แล้ว +1

      Usually the recommended slots for optimal dual channel is as you've said A2/B2. That's what is recommended on my motherboard as well (Asus Z170 Pro Gaming), unless you're running 4 sticks in which case it doesn't matter where you put them since you'll have maxed out.
      Edit: It's possible the difference between slot A1/B1 and A2/B2 is negligible of course, but as you said for the most part (every single motherboard I have owned) the manual recommends you use A2/B2 for dual channel configuration with 2 sticks.

    • @3rdpers0n
      @3rdpers0n 6 ปีที่แล้ว

      @@musguelha14 then you could say the same about using the first pci e slot for the graphics card.

    • @poofypoof6508
      @poofypoof6508 6 ปีที่แล้ว

      @@musguelha14 That would make sense, I've never seen an actual explanation for why the manual of motherboards recommends the specific A2/B2 dual channel configuration, but it would make sense if it's simply for clearance in the case the CPU cooler would be too large otherwise.

    • @greyly_
      @greyly_ 6 ปีที่แล้ว +1

      It's not just about clearance if the motherboard is using a daisy chain memory topology (which is common). Buildzoid explains it here: th-cam.com/video/3vQwGGbW1AE/w-d-xo.html

  • @mstrwil73
    @mstrwil73 2 ปีที่แล้ว

    I found it funny how you poked fun at the Verge RAM set up and then the Cable Mod ad had the RAM set up incorrectly as well.

  • @Dinkerchaudhary
    @Dinkerchaudhary 6 ปีที่แล้ว

    Was watching the verge's roast. Wanted to learn more about dual channel. Came here and we have the verge here.

  • @rjflicksgaming7978
    @rjflicksgaming7978 4 ปีที่แล้ว +1

    Please someone help me in this problem.
    My pc
    I3. 8100
    Rx580 8gb
    16 GB ddr4 single channel
    B360m Mobo only have 2ram slots.
    550watt supply cooler master.
    I am trying to play far cry 4. But it lag a lot , GPU usage goes up and down I mean fluctuate every second, which make game unplayable. If I add 16 GB ram to make it dual channel will it improve or there is something else I have to look into.
    I checked online that my Pc bottleneck is bellow 8% , and I am good to go with games but , this lag is something else I don't know .
    If you can help then please share ur opinion.

  • @hodgeman
    @hodgeman 6 ปีที่แล้ว +1

    Years ago when playing WoW, I tested 1GB in dual channel and 1.5GB in single (3x512), although fps were worse in single channel, the reduced stuttering from HDD access was worth it for WoW. Warcraft 3 ran noticeably worse.

  • @charissadelange5994
    @charissadelange5994 6 ปีที่แล้ว

    Good bench. What is your view on using say, 3 dimm slots, for 24 gb ram, vs 16 dual gb of ram? More ram, but not dual channel, or less ram, dual channel?

  • @Warmasterch1ef
    @Warmasterch1ef 6 ปีที่แล้ว

    I’m planning to build a PC next year and debating if I should get 3200 or 3600 DRAM at 64 GB (4x16), or 32 GB (2x16 or 4x8). I’ll be using it for gaming, Photoshop and video editing with Adobe Premiere Pro. For the CPU, it’ll either be a 9900K or the Ryzen 3850 with a 2080 Ti. Any suggestions on the DRAM speed and quantity/RAM kits?

  • @dylreesYT
    @dylreesYT 6 ปีที่แล้ว +7

    Why not 16GB with 2x8 and 1x16? That's more accurate real-world usage, surely?

  • @rabarber9610
    @rabarber9610 6 ปีที่แล้ว

    Fantastic video, good line-up of facts.

  • @theprosaicgamer5463
    @theprosaicgamer5463 4 ปีที่แล้ว

    Thanks for the explanation man.

  • @tdeclan3350
    @tdeclan3350 6 ปีที่แล้ว

    1:27 you should have took a screenshot from verge pc buid of the single channel set up from their excellent how to guide in making a pc to show what single channel looks like