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10700KF hits 90 degrees with Hyperthreading enabled, on CPUz stress test

g67575 said:
You can run Prime95 with a super duper cooler, doesn't mean it will be stable, even at default / auto CPU voltage settings (as I've found out).

I'll get a better cooler if I need one - with Alder Lake / Zen 4 out next year, buying an expensive new cooler might not be the best decision long term.
Click to expand...

My 10700K at 5.1GHz all core @ 1.33V hits 84C, power is a bit over 200W. At stock voltages it's pushing 260W and about 90C. And it's stable.

Day to day I just set it to 4.9GHz because the difference between 5.1GHz and 4.9GHz for gaming is non-existent. Cooler is Lian Li Galahad AIO.
 
S** it, now I'm running at 4.6 ghz, all core @1.21v and it's working nicely capped at 100w.
I can upgrade the cooler if I need that extra 0.1ghz :D

My advice for people running Prime95 is not to turn off Intel thermal protection unless you have a beefy cooler.

If you turn it off, your CPU core multipliers won't reduce under load and your power consumption will be consistently high as a result (and get super hot).
 
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g67575 said:
S** it, now I'm running at 4.6 ghz, all core @1.21v and it's working nicely capped at 100w.
I can upgrade the cooler if I need that extra 0.1ghz :D

My advice for people running Prime95 is not to turn off Intel thermal protection unless you have a beefy cooler.

If you turn it off, your CPU core multipliers won't reduce under load and your power consumption will be consistently high as a result (and get super hot).
Click to expand...

So in summary:
  • Prime95 is a power virus unrelated to any real world application.
  • Intel CPUs hoover power when overclocked, and also get very hot.
  • If you throttle the bejesus out of them, they cool down - or rather don't do as much work so don't heat up as much in the first place.
  • You lose .5GHz of single threaded performance as a consequence, aka 10% loss from where you started.
  • Better quality coolers allow CPUs to run as designed without melting.
Gotcha. Stop the presses!... ;)

You could have achieved as much by buying a cheaper, lower spec, lower TDP chip to start with. Same work output, same heat output, less gimping and no loss of purchased power.
 
Could've done, but a preowned 10700KF was only £10 more than a new 10700 :D

Don't the 'K' CPUs tend to run at slightly lower voltages at the same clock frequencies? Or, is that just a myth?

My DDR4 4133mhz overclock always fails in Prime95, but not the Aida64 memory benchmark... Guess I'll just run it at the default XMP setting.

An option to set Power Limit 1 to 105w/110w would've been nice, then I could run the CPU reliably at 4.7ghz on all cores.

Update - Lol wut, I have to run the RAM above 1.35v for stability in prime95, with the XMP 4000mhz profile...
 
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Michael_T said:
My 10700K at 5.1GHz all core @ 1.33V hits 84C, power is a bit over 200W. At stock voltages it's pushing 260W and about 90C. And it's stable.

Day to day I just set it to 4.9GHz because the difference between 5.1GHz and 4.9GHz for gaming is non-existent. Cooler is Lian Li Galahad AIO.
Click to expand...

That was why I set mine to 5GHz all core, 1.247v and called it quits. It's usually about 80C in Cinebench. Sometimes a rare spike to 84C on one core but rare. Gaming ranges, 45 - 75C dependant on the type of games. Usually mostly no more than 65C

After 5GHz more volts, more power, more heat and noise for very little gain.


My fans are set quite relaxed for noise on the NZXT Z73. It's also expelling via the roof.
 
Seriously get a decent cooler, what is the point having a high end 8-core CPU totally gimped by a cooler designed for something that pushes 125w max. You need some thermal overhead for the cooler to be effective, not constantly running at its peak capacity of cooling.
 
Do most people use the stock cooler with the 5600X? If so, what are the temps like in stress testing?

Just wondered if that's a better option for most people once prices come down a bit, since it maxes out at around 134 watts.

The 10900f apparently consumes upto 224 W at 4.6 GHz on all cores, which seems like hell of a lot to me. The stock cooler is rated for just 95W tdp!

Is the idea that you don't enable turbo boost with a stock cooler, or are Intel just very stingy with stock coolers these days?
 
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g67575 said:
Do most people use the stock cooler with the 5600X? If so, what are the temps like in stress testing?

Just wondered if that's a better option for most people once prices come down a bit, since it maxes out at around 134 watts.

The 10900f apparently consumes upto 224 W at 4.6 GHz on all cores, which seems like hell of a lot to me. The stock cooler is rated for just 95W tdp!

Is the idea that you don't enable turbo boost with a stock cooler, or are Intel just very stingy with stock coolers these days?
Click to expand...

The 10900f will only boost to that power level for 28s as per Intel's spec. Then it will drop down to the lower power limit.

Under all core stress testing, the 5600x will reach up to 95C with the stock cooler: https://www.tomshardware.com/uk/reviews/amd-ryzen-5-5600x-zen-3-review/2
 
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