Comet Lake Desktop CPUs reportedly run hot

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Apr 9, 2020.

  1. kakiharaFRS

    kakiharaFRS Master Guru

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    well that's exactly what I meant I'm not overclocking it, I actually underclocked it but still 65watts ? lol yeah no....even underclocked at 1.24v the 3960x draws 87Watts at idle (100+ stock) when in use for video encoding etc...it's "only" 220W (stock 287W) I never tried to go lower tough maybe I will thanks for the idea
     
  2. Archvile82

    Archvile82 Member Guru

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    Pentium 4 all over again! Intel got too complaicent for years, they should have had a backup plan for 10nm failing.
     
  3. toyo

    toyo Master Guru

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    A predictable scenario from 2017 when we had CFL-S release with just 12 threads, and to keep the 8700K under control at 5GHz it still needed decent cooling and delid. The 9900K further confirmed that even with an improved 14nm process and lower voltage required (in average) for 5GHz, things still ran very hot.
    And now we're at 20 threads. Surprising nobody, it's even hotter.
     
  4. Fox2232

    Fox2232 Ancient Guru

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    I would not be that critical. Those CPUs are running out of their comfort zone at that clock. Yes, they do not die, but they simply need excessive power.
    But compare all of them at 4GHz and they improved from generation to generation with better manufacturing process.
    Look at 3.6GHz which is right in the sweet spot and you can suddenly fit those chips with many cores into laptops.

    It is problem with marketing, they sell you chip that can do 5GHz on few cores and next thing which happens is that someone operates all cores at that clock or higher.
    Look back to 2nd generation (Sandy Bridge), back then intel sold you 3,1~3,4GHz base clock chips with boost up to 3,8GHz. Yet they already clocked to 4,8GHz with a bit of extra juice.
    It was not that bad, because those were just 4C/4T or 4C/8T chips. But their comfort zone was not at 4,5GHz or higher and it is not there even today.
     

  5. beta-sama

    beta-sama Member Guru

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    [​IMG]

    9900KS @ 5.1Ghz/5Ghz avx 1.31v LLC6 custom watercooling loop

    10min of Aida64 FPU
     
    Fox2232 likes this.
  6. fantaskarsef

    fantaskarsef Ancient Guru

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    Intel's news over the last months are just...
    Thankfully they have a different approach for the server market, where at least I think, heat is even worse than in desktop CPUs.
     
  7. Ghosty

    Ghosty Ancient Guru

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    What cooling is being used? I'll wait till Guru3D reviews one.
     
  8. chispy

    chispy Ancient Guru

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    This new cpus are going to be a biatch to cool lol , i guess at minimum it will required an aio 360 to cool that Volcano of cpu , 80c~90c running those temps day in and out cannot be good for hardware. My i9 9980xe on a huge custom made water cooling set up at 1.30v~1.32v and 4600-4800Mhz can reach 102c within seconds on cbr15 :eek: and start the throttle mambo jambo , hence it is attached to my water chiller 24/7 to tame the beast. they needed to drop this Arch 2 years ago as i do not think 14+++++++++++++++++++++++++++++++++ can give any more performance and reach its limits long time ago.
     
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  9. karma777police

    karma777police Member Guru

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    People are blowing out this out of proportion just like anything else these days thanks to media. I have i7 7820x@4.7Ghz which sucks 250W and there is no problem cooling it. I'd say there won't be a problem delivering power for Z490 and cooling Comet Lake S CPU. I also have 3900x, my primary rig and 3900x runs about 10C cooler than overclocked i7 7820x in exactly same case, fan setup and AIO. 3900x on load 60C and i7 7820x 69C where i7 7820x runs a bit cooler on idle, around 5C.
     
  10. karma777police

    karma777police Member Guru

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    You are doing something wrong there.
     
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  11. H83

    H83 Ancient Guru

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    No surprises here. The CPUs speeds are so high that of course they are going to run very hot, even my overclocked 7600K runs hot... So anyone considering those CPUs needs to add the price of a good cooler for them.
     
    chispy likes this.
  12. BLEH!

    BLEH! Ancient Guru

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    And are pulling like 250 W...
     
  13. HybOj

    HybOj Member Guru

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    Thats what u get when you support a monopoly for long enough, bad product for big money. Thanks god AMD is back. This is absolutely ridiculous
     
    chispy likes this.
  14. squalles

    squalles Master Guru

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    looks normal to me, my friend have one 3700x running at 80c on hyper 212 black edition and another one running a 3900x at 80c on coolermaster 280mm masterliquid pro too, another one running i9 9900kf at 85c on corsair 240mm too (cant remember exactly the model)

    so looks more or less the same
     
  15. JOHN30011887

    JOHN30011887 Member Guru

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    I'll defo wait for intel's 10nm cpu's then, im in no rush anyway
     

  16. MonstroMart

    MonstroMart Master Guru

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    Strange. Guru3d's 3700x was running at 64 Celsius and 3900x at 68 Celsius under a prime test with a aio cooler (so probably in the 50-60 for normal use). My 1800x is running in the 50-60 while playing games with a simple Cryorig h5.
     
  17. Denial

    Denial Ancient Guru

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    FWIW my 3900x averages 67-69c (depending on core) with a custom loop and EK block in P95.
     
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  18. MonstroMart

    MonstroMart Master Guru

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    Which is pretty much what Guru3d reported ;) Temp in the 60ies or even 70ies under prime is perfectly fine. When you get close to 90+ under load with a good cooler it's starting to be hot though anyway in my opinion.

    Those reports from unknown source are bs anyway. Never trusted them and never will.
     
  19. Stairmand

    Stairmand Master Guru

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    Meh. My 3770K build has run at 95c under load for the last 5 years with liquid and still going strong. Remarkably.
     
  20. alanm

    alanm Ancient Guru

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    Thats the thing I like about CPUs. They are the most durable component of all.
     

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