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Flying Sausages

Intel 10-Core Comet Lake-S CPU Could Suck Up To 300W

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Posted · Original PosterOP

https://www.tomshardware.com/news/intels-new-desktop-processor-draws-too-much-power

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Intel might have finally hit a wall with Comet Lake-S.

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As we've witnessed, the Core i9-9900K can draw over 200W of power when pushed to the edge. The Core i9-9900K only sports eight cores and a 4.7 GHz all-core boost though. The Core i9-10900K, which is the rumored flagship model in Intel's 10th-generation Comet Lake-S family, comes with two additional cores. The chip seemingly features a 4.9 GHz all-core boost. ComputerBase's sources claim that the forthcoming 10-core Comet Lake-S part can pull over 300W at maximum load. This information is plausible taking into consideration that the processor has a PL2 (Power Level 2) of 250W.

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Obviously, motherboard vendors are very upset with Intel at the moment. Apparently, the new Intel 400-series motherboards are ready to go, but Intel hasn't been able to optimize the 10-core processor's power draw for smooth operation. Initial speculation put Comet Lake-S's release date somewhere in February. As how things stand right now though, the launch might be pushed to April or May.

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In actuality, the excessive power consumption could explain why Intel might not launch any 10-core mobile Comet Lake parts.

AMD cpu suck up to 300watts

Screenshot_20200109-143152_DuckDuckGo.jpg.6877f09fcce1f0ebb4c12a55f46d630c.jpg

 

Intel cpu suck up 300watts

Screenshot_20200109-143216_DuckDuckGo.jpg.6d3eface0b2ec6a236dc824164c6da5c.jpg

 

300watts power consumption on 14nm comes with a feature to cook your egg like GTX 480 did in the past. But wait, our cpu can cook faster than GTX 480 up to 25%! In addition, our 10 core cpu can be a portable heater too. 

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Watt the fuck


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Granted Skylake and it's many, many derivatives have been good architectures for a while, but this is really starting to look pathetic. Not nearly as bad, but comparable to AMD's shitty FX refreshes that inched performance upwards in exchange for workstation-class power draw.


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I...can't say I care. If it performs better I wouldn't care if it uses a little more power, provided the board and coolers are available to sustain it. People are drawing comparisons to the 9590, but IIRC that chip consumed tons of power AND undeperformed in ever aspect. 

 

Watching a bunch more motherboards catch fire and melt as people try to put them in boards they shouldn't be will bring me some entertainment though lol


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1 minute ago, dizmo said:

I...can't say I care. If it performs better I wouldn't care if it uses a little more power, provided the board and coolers are available to sustain it.

^^^ I'd care even less, my CPU already eats 300W or more lol. I don't think many enthusiasts buying the top end SKU really care all that much about power consumption. ?

 

3 minutes ago, dizmo said:

Watching a bunch more motherboards catch fire and melt as people try to put them in boards they shouldn't be will bring me some entertainment though lol

Top 10 reasons for Intel to not have backwards compatibility with older mobos, it narrows the range of fire hazards uninformed or idiotic people have access to. 


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6 minutes ago, dizmo said:

I...can't say I care. If it performs better I wouldn't care if it uses a little more power, provided the board and coolers are available to sustain it. People are drawing comparisons to the 9590, but IIRC that chip consumed tons of power AND undeperformed in ever aspect. 

 

Watching a bunch more motherboards catch fire and melt as people try to put them in boards they shouldn't be will bring me some entertainment though lol

idk how i feel about having to buy a noctua nh-dh15 cooler for a consumer cpu

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1 minute ago, steelo said:

Is Intel even in the top 20 for best price to performance ratio anymore?

Would depend on where you're looking at performance numbers. In gaming they'd probably have at least one spot somewhere, outside of gaming eeeeh... very few workloads. AVX512 or something is an Intel specialty AFAIK, other than that not really much. 

Although there's often more to the argument than sheer fps/$. 


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With great power comes great thermal responsibility. 


 

 

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5 minutes ago, Zando Bob said:

Would depend on where you're looking at performance numbers. In gaming they'd probably have at least one spot somewhere, outside of gaming eeeeh... very few workloads. AVX512 or something is an Intel specialty AFAIK, other than that not really much. 

Although there's often more to the argument than sheer fps/$. 

True, they do ever so slightly hold the gaming edge. But as far as consumer grade CPU's they've got to be one of the worst in value.

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16 minutes ago, dizmo said:

I...can't say I care. If it performs better I wouldn't care if it uses a little more power, provided the board and coolers are available to sustain it. People are drawing comparisons to the 9590, but IIRC that chip consumed tons of power AND undeperformed in ever aspect. 

 

Watching a bunch more motherboards catch fire and melt as people try to put them in boards they shouldn't be will bring me some entertainment though lol

Give me a 600W TDP...fuck if I care with a waterblock and car-sized radiator.


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8 minutes ago, spartaman64 said:

idk how i feel about having to buy a noctua nh-dh15 cooler for a consumer cpu

Say what

cm_v10_3.jpg


I tend to reply with memes because I lack social skills and don't know how to express myself correctly.

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For context, my 8086k (6 core) running Prime95 6x128k FFT with uncapped power took about 120W. Scaling that to 10 cores (assuming same clocks) would give 200W. The all core clock is 4.3 GHz. If Intel have increased the all core boost even at 10 cores, that could result in the higher claimed consumption.

 

Historically Intel mainstream enthusiast systems (anyone pairing a k CPU to a Z chipset) would find mobos default to unlimited turbo power with MCE off. This is not considered by Intel to be an overclock since it does not directly modify the clock behaviour, other than it doesn't power limit. In that scenario, with the right workload (Prime95 with smaller FFTs) you can pull quite a lot of power. People saying Prime95 isn't representative of most workloads - this is your time to shine! MCE on is a mobo enabled overvoltage/overclock so not considered here.

 

AMD behaviour is different, in that by default the PPT limit is honoured by the mobo by default. While there isn't a 10 core CPU to compare against, it's more than the 8 a single CCD supports so let's assume for now the nearest to compare is a 3900X. Although it is 105W TDP, the actual PPT limit is 142W. By default, it wont take more than 142W. If you enable PBO, that removes the power limit and is more comparable in operating state to Intel's. I have no idea what power you can draw under that condition. My attempts at testing using the 6 core 3600 were thermally limited since the thermal density is higher than on Intel, so I couldn't push the power limiter before the thermal limiter kicked in. There is also another difference to note here, in that I believe PBO is considered by AMD to be an overclock. Please correct if necessary. As another data point, when I was overclocking a 1700 (8 cores) it was drawing 180W at 4.0 GHz. Higher powers are not surprising if you push the CPUs enough.

 

I have to wonder, if a solution for this would be for mobo manufacturers to enforce a PL2 value suitable for their mobo's capacity to deliver power. PL2 is the short term boost power limit level that enthusiast boards traditionally ignore. Overclockers who want to go all the way can then pick those supporting the higher PL2 values.


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5 minutes ago, steelo said:

True, they do ever so slightly hold the gaming edge. But as far as consumer grade CPU's they've got to be one of the worst in value.

Depends on your aims with the hardware. I paid $99 for my X99 Classy and $290 for my 5960X, it's both more fun to OC and cost me less than the $330 2700X and $290 Crosshair VII combo I had before. Since I like to OC and don't mind the power consumption or the fact that the CPU is used and the mobo is refurbished, it's a better value for me. 

Now if I were to take that same amount of money and put it into a Zen 2 system... well I wouldn't really get much better value. Could get... a 3700X on a B450 board? No quad channel RAM, cutting my PCIe lanes down to 20-24 IIRC (5960X is 40), lower quality board overall. The CPU would perform better but not really all that much better (they're almost equal with a 9900K right? My 5960X isn't too far off from a stock 9900K in the first place, and I only play at 75Hz). Also it wouldn't be all that fun to OC, the headroom is way lower. You can tinker with them in different ways though, but eeh I'm comfortable with how Intel works. Couldn't push much on an $80 or so board anyways I imagine, and IDK what used/refurbished higher end boards there are available around that price point (3700X is a bit more than what my 5960X cost me, so I'd only have $70-80 to spend on a mobo). 


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13 minutes ago, porina said:

For context, my 8086k (6 core) running Prime95 6x128k FFT with uncapped power took about 120W. Scaling that to 10 cores (assuming same clocks) would give 200W. The all core clock is 4.3 GHz. If Intel have increased the all core boost even at 10 cores, that could result in the higher claimed consumption.

Curious as to how much power your particular sample uses on a 4.9 GHz all-core OC? That would paint a better apples-to-apples comparison of per-core-scaling power consumption.

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what's shocking to me is that they're releasing a 10 core to combat a 16 core. have fun for the next 2 years hanging on the back !

 

Thought i'd never say this about Intel my whole life, But stop selling 2nd grade cut down product when your competition is close to 2 steps ahead in performance.

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33 minutes ago, porina said:

...

 

AMD behaviour is different, in that by default the PPT limit is honoured by the mobo by default. While there isn't a 10 core CPU to compare against, it's more than the 8 a single CCD supports so let's assume for now the nearest to compare is a 3900X. Although it is 105W TDP, the actual PPT limit is 142W. By default, it wont take more than 142W. If you enable PBO, that removes the power limit and is more comparable in operating state to Intel's. I have no idea what power you can draw under that condition.

...

With PBO on motherboard limits, my 3900X has never went beyond 165W on PPT under stress testing conditions based on my personal memory.


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My next gaming laptop/PC will definitely NOT have an Intel CPU if this is the case.  My battery life is already mediocre; this would just make it worse.  And that fucking heat output!  UGH!

 


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22 minutes ago, Tech_Dreamer said:

what's shocking to me is that they're releasing a 10 core to combat a 16 core. have fun for the next 2 years hanging on the back !

 

Thought i'd never say this about Intel my whole life, But stop selling 2nd grade cut down product when your competition is close to 2 steps ahead in performance.

you want 480w power draw? :P

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The last AMD cpu I used was the Athlon II X4 635 Black Edition, maybe this year I should try AMD again ?


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