Different Kinds of Memory as Fast As Possible
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- เผยแพร่เมื่อ 13 พ.ค. 2024
- DRAM, SRAM, cache, NAND, flash... So many words, and all of them mean memory, but there are some big differences between them!
Click to learn about how Hotspot Shield helps you browse more anonymously: www.hotspotshield.com/lp/anony... - วิทยาศาสตร์และเทคโนโลยี
As a computer technician and sales rep I have to explain the differences between RAM and HDD everyday.
I hear ya. Hopefully this video makes your life a little easier.
Techquickie It did. Thanks for the video, learned more than I already knew.
Tutoriales Mac y PC you should just click play on this everytime someone asks lol
+Tutoriales Mac y PC In my place, I have to explain to the comp technicians the difference between PSU and a UPS.
+kemboy323 lol XD
in the netherland we have it some easyer
dram is named werkgeheugen (english: work memory)
while hdd/ssd is just geheugen (memory)
But the prices of those things in our country are much higher
Sander te Winkel I belive the prices in norther europe is near equal? Last I checked, there was little differance at all. (Compared norway, denmark, sweden, germany and the uk.)
Dupl3xxx I mean compered to the USA
Same in Germany:
DRAM = Arbeitsspeicher (eng: work memory)
HDD/SSD = Speicher (eng: memory)
So, nearly the same as netherland :D
Sander te Winkel Aren't your prices calculated with taxes included while ours aren't, making them almost the same, or did you already add taxes to american prices?
This is a good video. I use analogies when explaining memory/storage. RAM is your computer's short term working memory, like the memory you would use if you were doing a math problem or doing something like driving (remembering where the other cars on the road are, the hazards, etc before making a decision). Hard drive storage is like your computer's long term memory, like how to ride a bike or what you need to pick up from the grocery store (e.g. data) or someone's face looks like (e.g. pictures) or what a song you listened to before sounds like. Short term stuff is easily forgotten because it only applies to the moment, but is important for multi-tasking or working on complex problems (RAM) and long term memory (hard drive capacity) is important because it allows you to remember more things. If you lack good short-term memory then the only way to deal with situations that arise quickly is to use your slower long-term memory.
My digital circuit design professor linked a Linus video in his lecture videos. Awesome. We have an exam on memories, registers, finite state machines, datapaths, etc. later today. This certainly helped refresh my *memory*.
dedicated wam :D
How much dedotated wam-ized have to servar
*dedotated wam
Detonated wam
Linus as fast as possible!
he is back!!! i missed my baby girlly linus
Mithun Hossain Your baby!!?!?!
BITCH DONT TOUCH HIM! HES MINE
fuck off, he is mine
You can all have your turn with Linus :D
thats gay guys, seriously
Great video, Linus! It had certain common facts i didn't knew.
I would like to see 'Maxwell Architecture Exlained - As Fast As Possible'
I already know everything covered in these vids and I still love watching them, great job :D
Aww, I was hoping this was a video about differences in DRAM or whatever. Like what the speeds and timings mean. This was helpful too though. Thanks for the video.
Thank you for this video Linus and other people making this video! It really helped me out a bunch! :-)
This channel is a goldmine for Information Technology majors!
You guys have the best crew. Never stop I need you guys!
Speaking of not being plugged into anything - Hotspot Shield ... Linus just relates the AD at the end to anything.
Another great video, thanks Linus.
I'll be directing a lot of people I know who aren't as tech savvy as I am but would like to be to this video and your others.
Keep up the great work!
This is how I used to explain RAM vs. HDD/SSD. RAM is like your short term memory. It lets you do more things at once without losing track of them or slowing down. Your HDD/SSD is your long-term memory to store things like documents/music/pictures/videos that you want to keep for longer periods of time.
Extremely helpful explanation!
even though there is an ads at the end, it is still a really useful video ! Thank you
i watched this video while using hotspot shield :D because youtube is banned in my country :(
Sorry to hear friend!
:-( It's sad that that kind of stuff still happens... where do you live? Turkey? (Oh wait they unbanned it right? :-/ )
***** Twitter is unbanned but youtube is still inaccessible
Abb Cc use a vpn
What do you think he's doing, dumbass
Thank you very much linus for these types of videos , I really learn a lot from them
it still grinds my gears when someone asks me how much "memory" my computer has (4 gigs of RAM) and they will laugh at me because their computer has over 400 gb...(HDD capacity)
LOL those guys must be from stone age.
Jester Muffin nah, its just that not everyone in my country is knowledgeable about computers
90% of the population here is still running i3s with 4gb ram and a shitty gpu xD
My dad has had a PC for over 30 years, and he still calls the hard drive the 'memory' because it 'remembers' his documents!
@@RCassinello Then there's me with no HDD or SSD, storing everything on old DDR3 memory. But the problem is, the R/W speeds are a quarter of a modern SSD because I run dual CPUs. And it costs way too much
very informative, many thanks linus
I still love watching these! :)
I thought this video was going to be about NAND SLC MLC and TLC (mem-types in an SSD) but still an informative video.
same here lol
These videos are for the more... "uneducated". The general person won't be asking about different types of NAND memory because most people don't even know what an SSD is. We'll get there someday.
Then the channel would be called Techslowiebutinformative
I thought NAND was a logic gate which the output is always 1 unless the 2 inputs feeding into it have a value of 1.
Im just doing my Computer Architecture class, and well you explained SRAM & DRAM quite well actually..
and i need to do my semester project about computer memory in 500 words and this video is all i need
Hey Linus can you do a techquickie on choosing the right sizes of liquid cooling fittings and hoses to match. Many have this problem of buying the right size hose for the fitting. Etc.
loved that plug at the end
You guys should do a video on SDRAM: Synchronous Dynamic Random Access Memory
Why do I watch some of these even though I'm not going to learn anything?
Me too. I think we're just here for Linus.
Haha I think we all do. We all know it, but Linus is here, so why not learn it again
I started a techquickie marathon and tbh it happens you learn something interesting.
because even though you know 90-95% of the content, there is 5-10% of stuff you can still learn (at least that's the case for me :p)
@@OG1GTP not really my computer teacher knows shit about computer (ironically) and I have to study from here :-)
Thanks for the information Linus :)
Bravo.....!!!!!
Will be useful for my exams..:)
Great explanation. Your voice reminds me of Yakko from The Animaniacs, which in my book is great!
You sir, are awesome. Subbed.
Welcome to the brotherhood
when can we see VS-RAM For super clocking? And would that be something that could improve graphic cards and system memory?
Good job linus
Great video, but I do have a question.
People are talking about GDDR5 memory and its use in Graphics Cards. In what category does this fall, and why is it different from the other media expressed above?
4:04 top-right ROFL
Do a Video on what does 128 bit and 256 bit make a difference on my Graphics Card? I have a GTX 650 Ti 128bit , should i have rather buy a different card using a 384 bit interface and why?
***** Well I had two preferences I wanted a 2GB Graphics Card and it should have GDDR5 , but it has a 128bit interface. Did I make a good choice or should I have rather went with something with 1GB GDDR5 and 384Bit?
Cornelis Stoop Bits do usually matter more than the quantity of the GBs in GRAM for performance. It's just like actual ram, stacking a million GB on a crappy card doesnt speed it up, but lets it go to higher resolutions and store more high quality textures.
Thank you good sir! That sums it up I'm staying with 1 HD screen so I will be fine, but one more thing if i buy a 1gb card with 512bit will it be better than buying a 4gb 384bit card?
***** your missing some details, what you have been calling the "bit rate" isnt a bit rate at all it is the number of bits that can transfer at a time, the bit rate (often now measured in GB per second) is memory frequency multiplied by the number of bits (divided by 8 to get the MB/s).
More more more tech quickies!!! I need my fix every day -_-
SRAM in Polish means shitting.
+Gregory May In Macedonian means shame
+Dac DT-HD same in Russian
More precisely, SRAM means "I am shitting".
omg this man is in all my youtube subscriptions
Hope to see a video about the new 3d xpoint soon - go new memory! :)
Episode on ESD please!
Actually, VPNs CAN improve latency for gaming if it improves the route, and for League of Legends, I go from 80-90 ping not on a VPN to 60 ping on a VPN.
Hi Linus,
Can you explain as fast as possible about compact disc evolution?
From diskette to blu-ray..
WHOOOOOO YES I SECOND THIS
❤ your explanation ❤
Very useful, thanks!
Please revamp this video with the new types of stuff. I love all your channels and always start with your channels
Has there yet been an episode on DAC and AMPS? And sound cards?
what about the ram thats in your graphics card? i wanted to know more about that.
Could you please explain the different types of VRAM and what makes each one good or bad? (Hyinix, Samsung, Elpida, etc.)
that was a good explanation
that's a good explanation
Is that filmed on your 4K cam and downsampled? looks very crisp, even on my old TN. :D
Linus, is there any chance you can tell us when a Pure Sine Wave UPS is and is not justified?
i learned more from these As Fast As Possible videos than from going to college for 4 years LOL
Okay thats sad. Im in the first semester and we learned everything in the video.
Such valuable info for a tech noob like me... Thanks FAP team.
How about virtual memory on PC, the higher the better or the lower the better? by forcing all data stay in fast DDR ram or allow more data to be store is slow hdd virtual memory better? MY Laptop is Win8/i7 3630/DDR3=8GB/HDD=1TB. Pls thx
Linus. Could you do a video on Cache next and maybe what cache to go for when buying a computer?
Thanks TECHQUICKIE. Here my go-to source for all things technical, especially computers.
This is being asked in my exam today thank you linus
Good job
Nice video, Good Guy Linus
Thanks linus you just go me through my exam :)
HDDs and SSDs have some DRAM flash memory as well so speed things up.
A Crucial M500 960 Gigabyte has 512 MB of DDR3 flash memory I believe.
Perfect way to learn for my IT exam
I think that VRAM refers to Virtual Ram and not Video Ram.(but i may be wrong, looking at laptop spec sheets it seems to be pointing at Video ram or ram that the Graphic card uses)
Virtual RAM exists because of multiple programs. Most program starts at let's say address 0. However there is only one such address in one computer, thus VRAM tricks the program into thinking that it is run natively in the physical ram starting at address 0, but it is actually pushing the program into different slots in the memory.
Also a program may be coded to use let's say 2GB of ram. However when the program is running it might not use all 2GB of the rated space. This causes the system to have less ram available for more programs. To counter this problem, VRAM is used to trick the program that it's using the 2GB of ram but it actually have some parts of the program stored and not written to the RAM.
TAPE STORAGE FTW! Its has extremely high capacity and lasts orders of magnitude more than than flash or disk storage
incredibly slow and potentially volatile, though... old cassettes from early microcomputers often have issues with reading data because so little of the original magnetic impulses are still there after 30 years of sitting around gathering dust. modern solutions are still pretty cool, though, I agree. I remember seeing the server at my work backing up to small tape cartridges and thinking that was really neat
you got a new editor or sthn ? Noticed a lot of pics to underline flat jokes latly. Just saying... i dont mind.
btw. I would like to know more about the cash on the processor, like what are the differences in the L1 L2 etc.
Do a future video explaining the different components of custom water cooling
Awesome video.👍
Now i know what kind of memory is fast or slow Thanks :)
Love your Videos!
Nice video !
Does a computer either have SSD or HDD?
and regarding RAM, whats the difference between SIMM and DIMM?
And as for the first question, a computer can have both, or it can have just one of any. My laptop, for instance, came with only a HDD but some time after I bought it, I replaced the CD/DVD drive for a HDD adapter and put my HDD there and bought an SSD, and put it where the first HDD was, so now I have both.
And what about virtual ram and dedicated ram? Is dedicated ram same as DRAM?
Thank you, Linus.
(HIMYM reference)
So if the cache sizes of CPU's increase, does that make the need of RAM less important?
So if i have a 64MB cache CPU does that mean small programs (under 64 MB) can work entirely on the CPU instead of ram thus improving load times?
Or just imagine an SSD of SRAM-like storage wich reduces loading times to a couple of miliseconds
RAM WILL ALWAYS BE NEEDED NO MATTER THE SIZE
how many memory point is the in a typical gaming pc? 2 ram, ssd got seeral kinds of memory inside it including cache, cpu got at least 1 cache, motherboard got at least 2 memory somewhere, gpu got 3 or more, psu got some i bet, what we up to now? 10.....
HDD do still suffer from bit rot, so the data does degrade without power, albeit at a fairly slow rate.
your rock!
What about L1, L2, VRAM and RAM Disk?
As fast as possible? Maybe not worth discussing.
L1 is broken into 2 parts and differnet from AMD and Intel. L1 has a Instruction 1/2 of ussualy 32KB per core in Intel chips and 64KB shared in a AMD module contianing 2 cores while the L1 data part has 32KB per core on Intel and 16KB per core on AMD. These sizes are very small but you have to understand that they run much faster than the execution cores do and most times are placed right beside the execution cores making access times very short under a ns in length to get from the core to the L1 cache. if neither L1 cache has what the core is looking for then L2 is accessed and L2 is frequently accessed data again differnet set ups from Intel to AMD. Intel uses shared L2 around 256KB per core with the core count times 256KB and then putting all of that cache together to make 1 bigger cache set while AMD uses a divided cache of 1MB or 2MB per core in the CPU.
L3 is basicly L2 but larger and unlike L1 and L2 caches Intel and AMD go at it the same way with a unified cache just AMD has it broken up into 2 parts and Intel has it all in a single part.
VRAM is Video Random Access Memory is used excluively by the GPU one set of VRAM for each GPU you have and how it is divided up is determined by the driver and the SLI or Crossfire set up. More VRAM ussualy is better as resulations are going up thus more VRAM will be needed.
a RAM disk can be refering to 2 things a DVD-RAM disc which i never have used so i do not know about or a system RAM disc for holding storage files which will get wiped when the power goes out.
XInfinity2013 the Cache on a HDD and/or SSD is in short a small amount of specilized chips for retreiveing frequently accessed data with a controller to predict what will be called next and store that into the hard drive cache. Some SSDs have a Cache made out of DDR3 and it in short is the same thing as the speciailized chips on a HDD just not specilized for the task though bigger cache sizes allowing it to store more in it.
I am doing a itx complete build n the gigabyte f2a88xn-wifi and I am maxing out the board's Ram. Is there a difference between the :32GB PC3-14900 DDR3-1866 4Rx4 1.5v ECC Registered LRDIMM and the 32GB PC3-8500 DDR3-1066 4Rx4 1.35v ECC Registered RDIMM, other than the speed? I notice the LRDIMM and RDIMM, is there a difference? these are both 32GB module and I am considering buying two of these but want to know if there is anything i should look out for?
1) the a88x chipset doesn´t support either RDIMM or LRDIMM memory.
2) LRDIMM RAM is more efficient than RDIMM memory and it alows for more capacity.
3) use any 1,5 volt, 2133 Mhz CL 10 or lower, low profile RAM
4) it seems that the Gigabyte f2a88xn-wifi only supports 2400 Mhz RAM when overclocked.
5) why the hell would you need so much RAM in an mITX system? Do you know the point of such form factor?
ilov3mus1cx3 well every year we do a project on a over kill build and so we decide to do it with an ITX mb this year. Thanks for the info, we got intouch with Gigabyte about it and were able to get in touch with intelligentmemory.com, they just released the 16GB ram modules that can be used on the board so we can do 32gb on the board after a few verifications.
Came back here on December 29, 2018 to see your hair back then Linus! lol
If you want to learn something and be amused then very worth while watching.
how much space or how much ram
What about tape drives? Why do servers use those?
So a flash drive stores data is that it????
Good teacher
Well... DRAM is actually just a type of "main memory", and there are other types of main memory too. Hard disc drives and magnetic tape drives are more accurately referred to as storage devices, as the CPU wouldn't directly access their data, which usually is read into the main memory before the CPU processes them.
how about a episode about CAS for RAM
Could you do a video on graphics card specifications and their meanings?
Do a video on the differences between static ram and dynamic ram
kasoka sichone DRAM has a capacitor which gives it its properties (need to be refreshed, relatively compact -> cheaper to produce). SRAM doesn't have a capacitor (more transistors needed -> relatively complex -> more expensive than DRAM)
Linus! What is Flash? I'm so confused D:
A magnetic form of storage used in SSDs, thumb-drives, and other forms of storage that may be either thrown around or need faster reading speeds. Other than that, limited number of write cycles.
It's when a man or a woman quickly show off their personal bits by temporarily moving clothes out of the way.
***** You might want to talk to a therapist about that.
Hard drives store data in series of magnetic polarizations. How is that even 1s and 0s? 1s and 0s is only possible with integrated circuitry. Anything other than that is just 1s and 0s converted into analog signals, like magnetic polarisation.
1s and 0s is just the 'simple way to look at it', this can be expressed as off's and on's, true's or false's, one state or another etc the principal behind it is that things can be in one of two distinct states (off/on, 1/0, true false, up/across, etc ) not specifically 1 or 0. This is digital information (off/on, false/true, 1/0 etc) NOT analog i.e. varying in value depending on strength of signal.
This is a simplified 'version'.
Oh sorry. Maybe I didn't express it correctly. I meant integrated circuitry transistor states as the only possible representation of bits. But I just checked it. I was wrong. So any 2 distinct states can represent bits huh.
Bin Artyte Yep. One example is a pure black and white image. One bit per pixel, black being 0, white being 1, with no in between states.
I learnt something new today
Thanks man good talk, I understood everything you said, however my wife, who I thought would benefit from watching to understand better went 'doe eye' lol.
If you want to maintain the health of your hard drive, run Spinrite. It will: a, prevent your drive from sustaining damage; b, repair damage it has already sustained; c, recover data from a dying/dead drive. Run it.
Can someone tell me is USB 3D or 2D NAND memory?
I was suggested to watch your videos from a friend of mine because of my "lack of computer knowledge", I have a beast custom built rig and people always ask me what's the specs, and I honestly can't tell them cause I don't know them...I watched this video to try and help understand it all a bit more but honestly I'm even more confused...
if you're using windows, go to the search bar, type in 'dxdiag' without quotes, hit enter. Should tell you the basics :)
Hmm, didn't cover DIMMs vs. SO-DIMMs? EDO, SDRAM, DDR 1/2/3/4?
A question, will the things stored on my usb thumb drive be gone if I don't plug it on to a power source every once in a while? o_O
NOOOOOOOO!
As Linus explained, the usb thumb drive uses nand flash chips, meaning they're non-volatile.
So, no, the data will be stored there for as long as the drive is functional.
If I understood from a article I read a little time a go. Data on a SSD or USB might actually decay after years if not powered on. So for long term backup solution it actually might not be the best. But were talking about a least a year of I understood i correct.
MaKv4l Yes you are correct, NAND Flash powered down will see data corruption after 1-3 years. High density monolithic flash drives can experience it sooner though because they use 4LC with extremely small electron per cell tolerances. something like 10 electrons makes the difference between a 0 and 1 so they can degrade very quickly.
***** actually it was a good question, linus did kinda point towards the fact that usb flash drives (and SSD's too) are actually sorta semi volatile but didnt actually say it, it takes a few years for them to decay but they will decay over time if they arent powered up at all.