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Intel i9-10900K 10 Core flagship CPU tested, runs very hot & consumes 235W at 4.8 GHz with over 90C temps

Written by Metal Messiah

The core i9 10900K is going to be the flagship gaming CPU in the “Comet Lake S” lineup from INTEL. With the launch date coming nearer, it would be hitting shelves soon.

It’s rumored to be a power-hungry Desktop chip. Now some power/thermal tests have been posted by a Weibo user (via 9550pro), which shows what you should expect from this processor in terms of thermal performance.

Based on the tests run by this user, it looks like this chip is quite power hungry and it can easily get hot as well. INTEL has been relying on the same aging 14nm process node for quite some time, with little changes done to the CPU architecture as well. This has now started to show its age.

AMD on the other hand has offered much better efficiency and performance per watt with its 12nm and 7nm Ryzen CPUs. 14nm has been a barrier for Intel in some terms.

Anyways, coming to the benchmark test done it becomes very clear that this CPU can consume a lot of power and can also get hot when running at the peak all-core boost frequency. The test was done using a 240mm AIO radiator, and the Core i9-10900K consumed a package power draw of 235 Watts at full load, in the AIDA64 FPU stress test.

The chip also ran at a peak temperature of 93C, with an average temp of around 87C. This  unlocked CPU does run at higher clock speeds and hence runs hotter and consumes more power at full load. We can expect similar performance/thermal values while running Games as well.

The CPU was running at 4.8 GHz which is the peak all-core boost frequency, without Intel’s Thermal Velocity Boost/TVB.

Make a note of this. Even with a 240mm AIO cooler, this CPU cannot run at the advertised TVB value, since the temp needs to sit below 70C for this feature to function. It looks like anyone using a Core i9-10900K would have to grab a high-end top-tier cooling setup, for example a 360mm AIO, or a closed custom-loop liquid solution to get this CPU running at its highest rated clock speeds. LN2 anyone ?

Forget about “Air Coolers” achieving these same values. We need a high-end cooling solution to maintain safe temps on this beast of a CPU. Make a note that this CPU is using one of the best dies as reported by MSI.

The Core i9-10900K can hit 250W when all the cores are pushed to 5.2 GHz (at 1.3V+ voltage). 5.1 and 5.0 GHz speeds can also be achieved with lower voltages of 1.22-1.25V, with the power consumption being in the range of 220-230W, resulting in slightly lower temperatures too.

53 thoughts on “Intel i9-10900K 10 Core flagship CPU tested, runs very hot & consumes 235W at 4.8 GHz with over 90C temps”

      1. I can tell from experience that pushing a 9900k to the max will lead you to 90c temps on 5.1ghz

        1. 90 is without OC on the 10900K. 73 is what I’ve seen for the same kind of testing on the 9900K. I personally stopped overclocking my 9900K. It’s fast enough. The occasional crash isn’t worth it to me. Fast enough already.

          1. Very true. Two more cores for gaming with unmanageable temps, this cpu won’t do well in the market Its about time intel get a few hard earned slaps across the face.

  1. Intel is pushing 14+++ nm way beyond the efficiency curve, 4.7ghz @230W
    that 5.3ghz is a marketing gimmick, this cpu will require custom water loop to manage this insane temperature
    no wonder Z490 is beefed up to 11, those VRMs will be put to the test

    1. indeed. it is just a gimmick. Intel is just too desperate to sell their processors at this stage when AMD has already dominated the CPU market.

      thanks to AMD at least they will reduce the prices of these comet lake cpus.

    2. Custom water cooling will not make a difference if heat is trapped under the IHS and cannot be removed quickly enough.

  2. What a useless cpu
    I guess the 10700k thermals are similar to the 9900k which also run very hot but at least can perform with a noctua nh d15 which is the top of the line air cooler.

    1. Intel is just too desperate to sell their processors at this stage when AMD has already dominated the CPU market.

      thanks to AMD at least they will reduce the prices of these comet lake cpus.

      1. even at a reduced price i wouldnt dare put these molotovs into my system. So glad i switched to ryzen. made streaming a breeze and a 8 core all core OC of 4.1 on stock air is outstanding. Ill gladly upgrade to zen 3 and give my brother or fiancee my 2700x

        1. lol, damn these “molotovs”.. Even my Ryzen 5 3600 runs like a breeze. Does not overheat as well. I don’t OC tho.

          But still the performance is mind blowing. Expect Zen 3 and ZEN 4 to be even better than these processors. Amd is the KING now.

      2. AMD has not dominated the CPU market, they gained a large share of the consumers, but professionals, which is where most profit is made, is almost exclusively intel.

        1. Wait…are you saying this site is full of clueless gamers? I thought they were just pirates.

  3. It seems that only a couple of years ago AMD were largely a laughing stock when it came to CPUs and yet here we now are today with Intel having to desperately wring out every last ounce of performance from their flagship consumer chip just to stay in the game. Quite the reversal of fortunes!

    1. AMD was a laughing stock since 2006 when they bought out ATI for a ridiculous price but they rebounded and it’s thanks to Lisa Su.

    2. Now Intel is the joke of the decade XD

      It’s amazing how 5-10 years can see the sides turning. One side is humbled and fortunate, the other, arrogant and self centered.

  4. Jeez, those are insane values. Glad I made the right choice shifting over to AMD this year. I don’t see any future for Intel CPUs. they are doomed. Which sane fellow will buy these ?

  5. Weak!! I’ll stick with my 9900K. By the time I’m ready to upgrade (3 years), Intel either better have their stuff in order or I’m going AMD.

  6. Hmph, that’s hot nowadays? i7 8086k would like to have a word with it. Overclocked to 5ghz is instant thermal throttling even with 360 AIO

      1. Hi taylor,

        It’s an “All In one” Liquid cooler with a RAD, most probably with dual 120 mm powerful high static pressure fans.

        AIO is basically a pre-packaged solution that combines the water block, radiator, tubes, fans, fittings, and pump into 1 sleek package. For this test the user has used a 240mm radiator AIO.

        Check this image for example.

        https://uploads.disquscdn.com/images/26916b9a5754b5cd5c31f9c488b00850c0d8c10d059d1c81a2bfb9fdf887a1f4.jpg

  7. Yep no point to update it seems, until intel update their architecture I m not even gonna touch intel, I was looking to update but f@@k that I dont need another spectre meltrdown


    Based on the tests run by this user, it looks like this chip is quite
    power hungry and it can easily get hot as well. INTEL has been relying
    on the same aging
    process node for quite some
    time, with little changes done to the CPU architecture as well. This has
    now started to show its age.”

    1. I 100% agree. Until Intel updates their architecture (and node would be nice as well) I am not interested in Intel at all. Intels Core architecture is well passed its prime.

      Intels 11th gen is supposedly their new architecture (back ported to 14nm++++) and Intel say comes with an 18% IPC improvement. We’ll see how that pans out, and still being on 14++++ could be a problem.

      I have already moved to Ryzen (X570 and 3700X) last year and will be upgrading to an 4950X when the drop (for work and gaming) and 4000 series has an 10-15% IPC gain and an 8 core CCX (so 2×8 core CCX chiplets for 4950x).

      That will have me sorted for years, hopefully Intel will sort their lineup out sometime in the future, I do want an competitive market for prices, spurring CPU tech advances and all that good stuff.

  8. I called this months ago when the first specs came out about the new 10 series desktops..

    I stated 300W TDP @ 5.1 Ghz all core likely needing 1.3v+ VCore to get there.

    Now Intel will have to contend with TSMC’s 7nm+ or N7+ node with AMD’s 4000 series this year which will also mark the first mainstream and HEDT CPU’s to ever be made under EUVL, which Intel claims EUVL will be ready for their deployment in 2021 – 2022, this puts Intel 2 years behind in that technological department, one you do not want to lag behind even a year on.

    1. Intel should also be worried about 4000 10-15% IPC gains and 8 core CCXs. Between Ryzens continual IPC gains (and now 8 core CCXx) and being so far behind TSMC 7nm+ process (with 5nm incoming) Intel really needs to sort their line up out.

  9. 14+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

    1. I think you forgot to add some more ++++++++++++++++++++++++++++++++++++++++++++++++++++, there that should do the trick!

  10. Yeah, ain’t nothing stopping me for going for Ryzen now. Intel is just becoming a meme of it’s own these days.

  11. He seems to be running furmark simultaneously which can increase case tempature by 10 degrees.

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