Can You Have TOO Many CPU Cores?
ฝัง
- เผยแพร่เมื่อ 9 ธ.ค. 2019
- Are there situations where having lots of processor cores can actually hurt performance?
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The human eye can only see 32 cores
2020 has never seen such bullshit
That's only for a trained eye, regular people can see only 4 cores :(
@@budgetbajur Old xeons are the only CPUs with good value.
playstationplayers: not really human eye can see only 1 core
Yeah, that's why I'd recommend buying a 3970X, disabling SMT and 31 cores to get the best performance
I'm a simple blender user, i see more cores, i like
My food processor does all the blending I need with only a single core.
@@SToNeOwNz underrated
@@openlink9958 its been 20 minutes how is it underrated
@@mariocdi8205 it only has 3 likes even though is funny af
Oh my g...🤣🤣
So, where can we buy such a cool looking hoodie? You never told us.
_Oh God, _*_I'm crippled with indecision!_*
*inhales* LTTSTORE.COM!!!
there is no super-gay LTT logo on it.....! :)
@@mdd1963 just when you thought 12 year olds were over using "gay" as an adjective for things they don't like...
@@zacharywilliams6492 Maybe it was used as a compliment? Do you always assume 'gay' to be a derogatory term, perhaps? :)
considering my tinder performance i have a question, can 0 cores get the job done?
take your right hand, make a zero with two fingers and enjoy the ride.
@@Mishkafofer exactly the comment/reply I was looking for... :D
Intel in 2019: "4 cores ought to be enough for everyone"
Tbh for most people it is.
When did they say that?
@@dotalegendery3998 its implied
@@guy_5108 I would say with the way games are going. 6 cores is plenty enough for a while
I like to think that 6 threads are good enough for just gaming, no compromises.
Intel: Yes, too many cores is bad because we can’t keep up.
AMD: More DOTS! I mean more CORES!
@BMWMED1 , My brain hurts from reading that.
@@moomoomoomuu It's ok, he's still busy trying to find a reason for paying more for intel to have less.
@BMWMED1 whatever keyboard warrior go back to your Doritos
Dyatlov: I NEED WATER IN MY CORE!
Shankovich well, you started crying first
"Can you have too many CPU cores?"
No; Dr. Su.
If RAM access is an issue you can just download more.
But you can't download Ram, it's a physical component not software
@@drabberfrog ez pz
@@Hohst Whoosh I was just joking about that. I know about the download Ram meme I don't live under a rock
@@drabberfrog So explaining how it really works is a counter joke? You didn't get the joke lmao, stop trying.
@@MartinWasTakensays the person that had to explain to me why I shouldn't explain the joke I did
More dates on tinder is better?
I wouldn't know.
I can sense that this will get loads of likes
Of course it's better, just like STD's from Tinder Dates. Gotta catch 'em all!
Oof
Because you're stuck in a loveless dreadful marriage, like me?
This isn't funny at all. Now I know 90% of the LTT fanbase are reddit-obsessed 12yr olds.
Correction, you *NEVER* have enough cores
This post was made by the AMD gang
*This is an intel sponsored video
This post is supported by the Linux gang
Hell yeah!!!!!!!!!!!!!!!!!!!!!!!!
@@tommihommi1 oh man linuxs ability use multicore is so good
@@murphy7801 Nobody uses linux.
That CPU install at 3:15 is brutal
that's how i got a bent pin lol
He just... jammed it in there. 😳
prob cause it's just a pleb Ryzen 5 and LMG just got in their haul of Cascade Lake X and 3rd Gen Threadrippers. A 3600 is barely a paperweight to Lord Linus
carringbushpet what’s wrong with Ryzen 5s?
@@carringbushpet those high-end cpu's are not gifts, they are review samples. LTT can't sell them, so they have $0 value to LTT outside of reviews and build showcases
When you have too many cores, you are just lacking tasks.
Me with 1 mega core (1024 cores) being like ah yes not enough
@@gameralexx475 a mega core would have a million cores, not a thousand
So I guess that nixes me for that cool 1024 thread 2U server from Dell.
@@gameralexx475 you mean kilocore?
When are they going to add the link in the corner..... he always points at it but the person the uploads them never adds it.
Yeah, I noticed that. Annoying
I came down here to look for this comment
carringbushpet same
They managed to do it fine in the new "$900 Ryzen Gaming Build Guide" at 1:20; is Denis doing the Techquickie?
th-cam.com/video/mNLhcNfUeNE/w-d-xo.html here you go
The ears can’t hear past 20 cores so why bother.
SamuraiVader underrated comment
Reminds me of someone bragging about the Cell processor. "Oh yeah. The SPEs can mix thousands of audio streams, but the human ear can only hear (some number far below that), so it doesn't really matter"...
Also, some of the PS3's CPU problems are actually explained in this video well.
2:00 Hello my fello people from 2004.
_Agressive chair dancing_
64 cores exist
Me: running dual cord in my laptop
My laptop only needs one cord😜. Seriously it's a laptop so it will always be a compromise between performance and battery life. Slightly more powerful than you need it to be and the best battery life you can get with that performance. If a dual core Pentium CPU with iGPU is enough then you get awesome battery life in return.
Cord!?!? You mean backbone, right?😆
Cord?
Surprisingly enough, dual power brick laptops do indeed exist.
My 6c/12t 9750H says hi from a laptop that has a RTX 2060 while having ~5 hours battery life in power saving, 3 hours when streaming youtube at max brightness or about one and a half hours gaming (though I don't advise doing this on battery, not good for the battery).
That said, my old i7 4720HQ never managed past about 3 hours on battery saver, 45 minutes gaming, with a GTX960M.
Laptops have come a long way, it's more of a case of price/performance/weight, and I'm fine with my 1.8kg 15.5" laptop.
Don't worry, 3950x owners. I'll happily trade you a superior Celeron processor for free.
Intel Marketing slide leaked, 2019.
Wait do you also trade for a xeon phi 7210?
If it has twice the single thread performance than a 3950x and 4 to 6 cores,, then I'll make that trade without blinking.
"High CPU core counts give you no tactical advantage whatsoever." - Big Boss, 1964
Look like you gotta busted headlight boy (crash)
Was that James or Riley singing the NUMA jingle?
Lol
you mean O-Zone - Dragostea Din Tei? Very much sounded like it :D
Linus: Can you have too many cores?
AMD : Hold my Threadripper 3990x
...................................................................
AMD: How much cache do we need to make 8 chiplets 64 cores feasible?
AMD engineers: YES
MOAR MEMES!
Joke of the day: this video is sponsored by Intel's revival of the 22nm dual core Pentium G processor.
Haha
Intel kept progression slow by keeping to 4 cores and rehashing it for years, imagine the progression we would've had if Intel never decided to screw the consumer for max profits.
I really love how Linus explains complicated things in an easy way.
sounds like he got his Intel Check.
Nah...it sounds like he's looking out for consumers. Protecting them from evil marketing that's trying to decieve people into buying more cores than they will ever use.
2:03 Did I just hallucinate that for a sec? 😂😂😂 "Mayahi"
Jokes on you, I've just downloaded 18 cores for my i3 2120
Jokes on you, downloading 64 cores
@@MahdiShibly jokes on you, i'm downloading Nasa computer
Was it a zip map? Because there is a chance there is a gpu folder in it, go to 2080ti and install it
@@s1ndrome117 with great power comes great responsibility. Start seeding the cores
I sure hope that your getting those cores directly from Intel. You wouldn't want to be caught pirating cores. I learned that lesson when I tried to download RAM for free.
I still have a single core 3GHz Pentium 4 desktop that I got 9 years ago and it's still running great. It is surprisingly responsive for such an old computer.
I find your videos entertaining and educative. Even your ads are so well presented, unless it's a repeat ad for me for the 3rd time, I love watching them.
Linus 2019: I create problems where they don't exist.
64 core cpu: exists
Firemen: *heavy sweating*
2:03 This little dance alone makes the entire video worth watching.
Explanation of NUMA UMA was really great. Simple and clear!
"Can you have TOO Many CPU Cores?"
- Stares at his 4-user multi-workstation -
Me: I'll get back to you on that one, yea?
In your case, it's the exception around there. In fact, the end of the video pertains to this use case.
You have to admit, 9000 cores would be a bit redundant 😅
2:03 for the tasteful
Gonna upgrade to ryzen this spring, wish me luck!
you dont need luck mate! i got a 2700x and its awesome-my 3950x just arrived,YIP YIP YIPPPPEEEEEEEE!!
Ryzen isnt bad at all, it's faster than intel
Yes how’d that upgrade go?
This is how I feel about CPU cores as well. If software isn’t written to utilize all the cores available then we’ll see some delays.
Good video thank you.
What about disabling cores when you use your CPU for gaming
pointless
Not always pointless. You can often hit higher clock speeds when some cores are disabled, though it's not worth it for everyone.
Try playing Far Cry 3 on 8 cores vs disabling 4 cores. 4>8 in old ass games.
I had an FX-6300 that OCed to 6.1 GHz with 4 cores disabled. Made it about 85% as fast as the 4790k@4.6 GHz I upgraded to later, but unable to run multi-threaded games well due to only having 2 cores.
The 4790k ran games slightly better with HT off, but disabling cores offered no extra OC potential.
The 4790k died in a lightning strike, and was replaced with an R5 2600. I can get a slightly higher stable OC with 3 cores disabled, 4.25 GHz, but the stable 4.125 GHz I get with all 6 cores is fine. There's still a little voltage headroom, but I'd rather not push it over the present 1.4V for long term use.
@@auturgicflosculator2183 Sounds like the fabled CPU lottery. Also lighting didn't give you super OC powers?
0:00 That's more money then I've ever had saved up in my entire 20 year life.
Maybe it means you're bad with money
@@SiisKolkytEuroo Or maybe he doesn't live in a huge country.
I live in a small country and currently make 600 euros a month, a good wage in our country is about 1500 a month, if you can score this, you are doing well.
Good IT technicians can score over 2k a month, but that's a massive rarity here.
A top job(below managing and non-politicians) nets you around 3k a month which is a low-end pay in the US.
@@MartinWasTaken this is an example of why the "single market" doesn't work, and different countries should use different currencies if the value of that currency would not match the euro.
though this does depend on the state in the US (yes I know that state means something different to the rest of the world, but nation state, made of nation states) US federal minimum wage is $7.25/hr (6.51 euro) assuming 160 hr month is only 1,042 euro a month. though a state like California, or Washington that has around $12/hr (10.77 euro) is 1724 euro a month. and there is a movement to standardize minium wage to $15/hr (would be 2155 euro a month).even with all this being said an ok wage is only about $2667 a month (2394 euro)
so your perception of american minimums/low-end a bit out of balance, your country might not be the greatest, but wages should also be put into perspective with cost of living, I have a feeling that the 600 euro a month doesn't make you homeless, and that 2k a month is probably only a modest house.
It's surprising that most programs don't make use of multiple cores. But it can be useful to assign cores so that certain programs like video processing don't tie up the computer.
This is why benchmark comparisons are the gold standard.
Can you have too many CPU Cores?.
*_AMD wants to know your location._*
[10-12-2019_21_26.]
For games? -Yeah.
For heavy tasks: We're not there yet :P
It awesome a lot of newer games are supporting more cores
I don't think we'll get there ever, even those 8000+ core clusters aren't bottlenecked in any way with higher core count.
@@Mvp-AngelOfGod Indeed. Tho there's a limit to how much you can spread the load for some parts of the game. Not everything can be spread over several threads unfortunately
Maybe they support it but isn't as efficient as fewer cores with high frequency
@@budgetbajur it's exactly the other way around. It's a lot *more* efficient than fewer higher clocked cores.
did I hear the metal gear solid alert sound effect in there? great work, Linus and crew; love your videos
I have an older t5500 2 x 6 cpu, 74gb ram. On numa, when starting a Hyper-v guest, it takes more time to start up a larger dedicated memory guest. This is because in the background, it is actually reorganizing memory pages to shuffle them to the closest cpu.
After it does that and ram pages are moves, stopping and starting takes Nirmal time. Very interesting. This doesn’t really happen much on newer systems, especially with higher bus speeds , latency is reduced.
The lesson is, it is what it is. ;)
I agree with Linus...
Linus send me your 3950X!!!
Give this guy an upvote so that Linus will send it.
Maybe Linus regret getting a 3900x for his personal computer.
Leader: So how many cores do you want?
Tech guys: YES.
i love linus videos they are so random sometimes that you get addicted to the channel easily
Thank you for including that Numa Numa joke even if it was only for a moment.
Mkbhd : i have computer with 28 cores
Literally minutes later
Linus: you have so many cores👀
stop using this comment format
you did it wrong. and stop
Linus built a 56 core system.
@@gausts yes. So....?
@@kyapox whats wrong?
0:32 Linus just spotted Solid Snake ❗️
An AMD FX module is like 2 contractor workers that share their second most used tool. They work very well for integer logic, but gotta wait for the other to finish with the floating point operation.
That 1:41 dead shot was well synced with the script. 😂👌👌
For the past two weeks I’ve had 128 cores in my phone, and here’s my review.
this is linus mate, not marques
I am so glad that Numa Numa parody only lasted 3 seconds
Maya Hee, Maya Hoo, Maya Ha, Maya Ha ha!
Perfect time for this video, I'm trying to decide between a quad-core and an 8-core Ryzen CPU. Thinking about going with the 8-core.
Does Linus just have a video for every possible question a PC gamer could ask?
short answer: mabye
Akumi: _short answer: mabye_
*maybe
*Long answer:* Well yes but actually no.
I mean, yes still no.
Still yes but nope.
Not but yes but no.
Okay then, its yes but still is not.
Ah, nope actually but not yes.
Yeah well, its not.
Its not for real but not yes.
Its spam but no.
Well okay but no.
Okay but a bit nope.
No well but no.
Actually its a no.
Never, still for consoling, okay.
Nope, okay then.
Well, I disagree; just no.
@@towsif_8_128 Uh.....
*_Nein._*
The human body can only process 1 core
Small addition, but I think worth noting (can't recall if Linus has addressed this in the past or not).
Frequency in and of itself only has a linear affect on the power needed by a cpu. If the only thing that changes about the cpu is the frequency, the power will go up, but not as much as you might think.
It's the fact that higher frequencies generally require higher voltages in order to remain stable, and changes in voltage have a quadratic effect on the power consumed and outputted as heat.
I'm pretty happy with 6 cores (i7-8700k) at the moment, but I mostly do light (nontime sensitive) video/photo editing and gaming.
The human eye can only see 4 cores
Actually, 32, can't you read ^ ?
THERE! ARE! FOUR CORES!
CPUs with hundreds of cores and programmers still not using multi-threading.
@J R, because most apps already run in real time and are Not overly cpu intensive. #Bloatware
The main reason is that most software can only process the next task only if the previous one is already done (if this then that algorithm) Like in games, you can't predict if the player will press W, A, S or D unless the player have already done so.
However, in video editing, it already has all the frames and all the effects on the table, the first core can process the first frame and the second core can process the second frame and so on (where more cores = more frames being rendered simultaneously) since it already know the steps needed to render the video.
Didn’t read the other comments, but I think more videos going more into depth with numa and uma effects of system performance. Both theory and maybe just a few examples.
A computer work station is becoming an increasing part of my life productivity now and using these machines for work is requiring me to know more about configuring and building them for my specific applications.
How about the core i7-6800k with 6 cores and 12 threads? I was still able to overclock it to 4.3 ghz on all cores. I have that paired with a GTX 1080 and 16 gb ddr4 gskill ram at 3000mhz.
Calling Abode software "highly threaded"
Did you intentionally write "Abode", or was that autocorrect at work?
@TheMadTitanSkid Well in all seriousness, an abode can be made from adobe (it's a type of mud brick). 😁
I only have 4 cores cpu. Where can i download more cores
www.amd.com/en/support
Please do a video on on 2019 CPUs FPS/Dollar
Have you heard of the Adepteva multicore processor from eight years ago? It was a kickstarter campaign to create a crazy multicore chip with 16 to 32 cores that promised a "supercomputer for everyone". Here is the wikipedia article en.m.wikipedia.org/wiki/Adapteva
I would love for you to get a hold of one of these oddities and test it out.
whenever new ryzen releases everyone on the internet becomes streamers and content creators
I know right?
I'm a gamer and heavy Photoshop / illustrator user and having tons of cores is useless to me lol
Yep. And we know damn well most of them just game and watch porn on them.
I compile therefore I multicore! 128 cores and 256 threads please. 👍
Thanks for the Numa Numa dance reference.
I would love a video on why we don't have like a dual core cpu or a quad core with insanely high clock speeds. The trend is more cores at the 3-5ghz range, why don't we have dedicated gaming cpus in the 6-9ghz range?
8 cores is perfect to me! Thank you AMD!
8 core is fantastic. My Ryzen 2700x doesn't even flinch on everyday use
The comment section can only communicate with one meme.
I need more cores. How else am I supposed to play Minecraft in 8k??
I changed my 8086K to 6 cores a while back and it does perform better for me. I mostly do single-threaded stuff.
While video is accurate...
This video is sponsored by intel.
This is painfully last gen
Looks like Intel wrote.the script and sponsored too🤣
3:44 I didn't know what I was getting myself into when I bought a FX 8350... It's not like performance is abysmal, but it's very slow in tests such as Cinebench.
Thanks! You are preparing me for the exam tomorrow.
sponsored by Intel Core 2 Duo . .
Intel: Linus please make a video so people stop buying high core AMD
AMD: we run more cores, FASTER
My reason for needing more core’s is for virtualization software like hypervisors. So that my virtual machines can have the best performance for separate tasks.
There are also software limitations. Assuming calculations can be made totally independently then adding parallelism helps. If you have either contention or cohesion (co-ordinating threads, intermediate results of calculations etc) then there is an inflection point where more parallelism will impact performance (regardless of any other factors) cran.r-project.org/web/packages/usl/vignettes/usl.pdf
video should have been "Can you have TOO many CPU cores" "No" done
Intel eye can not see more than 28 cores...
that numa numa reference was perfect
Linus I have a question. Purchased a Aorus B450 wifi MOBO to use with Ryzen 2600, which I took out of my ASRock MOBO. Cpu red light comes on. So tried 3 More of the same MOBO and all gave me the same red light for CPU on the MOBO.
Did all the trouble shooting, took back to the store and they tried a working CPU and it didn't work in the Aorus motherboard so I exchanged it. Got a tomahawk board now and still the same issue. So I contacted Ryzen will send that it. No pins are damaged. So I purchased another CPU Athlon 200GE and guess what that is giving me the same issue of a red CPU light on the Tomahawk Max board. What the hell is the issue? Please help.
This video completely failed to mention Amdahl's law. There's a hard mathematical limit to how many cores you can make use of. It's not just a current technological limit. It's a limit that cannot be overcome for all time.
If you're running a single application, having the inevitably sequential part of the computation be as low as just 1/32nd or 1/64th, is borderline impossible. Of course servers that are hit with loads from multiple users that run independently of each other can do with even more cores, but a personal computer with more than 64 cores will maybe never make sense.
This is true but somewhat misleading in the sense that there’s no actual limits on how much of a program is sequential.
Even things that seem like they must happen in order, like calculating the digits of pi, can be easily parallelized indefinitely.
Here I thought finally someone will talk about Amdahl's Law...nope guess not
atd godjjj what’s that? Tell me everything!
@@RekzysTheTitan It's effectively a limit on how much you can speed up a program no matter how many cores youve got. Most, if not all, problems are only so parallell and the time it takes to run is limited to at least the time it takes to execute the non parallell part.
Please explain: *NVMe Host Memory Buffer* . Some "budget" m.2 ssd uses (the CPU's) HMB instead of it's own DRAM(if I'm understating it correctly). How does it work? And how much difference it makes with the ssd's (usually) SLC buffer? Thanks in advance.
I'm a simple gamer, I see higher clock speeds, I like
this public service bulletin was brought to you by the kind folks at Intel
I see Intel's marketing got to you.
This was probably the cleanest segue from Linus in years 😉
Finally someone mentions it
Did Intel come up to Linus in a black van and smack him around in response to his rant last week?
This video is brought to you by Intel. Less is more... for more.
2:04 and I thought everyone had forgotten about that 🤣
Question, since streaming is becoming more and more popular, if i wanted to play and stream on the same machine, would i need a cpu with more cores than what is normally considered "good" for gaming, but still not too many? Is streaming even considered a multicore task? or does the combination of both tasks (gaming and streaming) require/benefits from multicore CPUs?