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Silicon Lottery: Roughly 20% of Intel Core i7-10700K achieve a stable 5.1GHz 24/7
We mentioned Silicon lottery quite a few times already if you are interested in purchasing a processor can guaranteed to reach a certain overclocking frequency, you can purchase them binned. Comet Lake has been added to the Silicon lottery lineup and reveals some interesting facts.
Silicon Lottery, dedicated to selling binned and pre-tested/validated tweaked processors, launched their first Core i7-10700K in versions that reach 4.9GHz, 5.0GHz and 5.1GHz on all-core overclocks. Along with each product, it has been shared what the percentage of chips reaches that binned frequency..
According to these statistics, 20% of the chips reach 5.1GHz with 1.4V in BIOS (1.32V), 68% reach 5.0GHz with 1.375V in BIOS (1.3V), and 100% reach 4.9GHz with 1.35V in bios (1.28V). They all hit an extra 100MHz when using only 4 cores.
Speaking generally this means that 5.0GHz on 8 cores and 5.1GHz in 4 cores hits 68% of the processors available. This also means that 20% of the processors can reach 5.1GHz in its 8 cores and 5.2GHz in 4 cores.
The particular details about the testing methodology and the different adjustments can be found on the official Silicon Lottery site by clicking on the product pages, whose links can be found below:
- Intel Core i7 10700K @ 4.9GHz Boxed Processor
- Intel Core i7 10700K @ 5.0GHz Boxed Processor
- Intel Core i7 10700K @ 5.1GHz Boxed Processor
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vMax1965
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Posts: 52
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Posts: 52
Joined: 2008-07-06
#5797963 Posted on: 06/10/2020 05:51 PM
Just tried to push it to 5.2GHz at 1.3v...booted into Windows but froze during the Cinebench R20 run...It also pulling more than 1.3v in HWinfo at 1.327v. I had LLC at Turbo....Do not want to push more vcore as I am more than happy at 5.1GHz all core stable...
Just tried to push it to 5.2GHz at 1.3v...booted into Windows but froze during the Cinebench R20 run...It also pulling more than 1.3v in HWinfo at 1.327v. I had LLC at Turbo....Do not want to push more vcore as I am more than happy at 5.1GHz all core stable...
Mda400
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Senior Member
Posts: 1042
Joined: 2008-07-10
#5798019 Posted on: 06/10/2020 08:03 PM
R20 uses AVX which raises voltage on intel processors. Unless you use adaptive voltage(and offset the addition of core voltage) or lower the avx multiplier in the UEFI, you will have a harder time keeping stable versus non-avx workloads.
Also, you want to use the LLC setting that causes the least amount of core voltage fluctuation from idle to full load. Highest setting is not always the best and can sometimes produce more heat/use more energy than necessary.
Just tried to push it to 5.2GHz at 1.3v...booted into Windows but froze during the Cinebench R20 run...It also pulling more than 1.3v in HWinfo at 1.327v. I had LLC at Turbo....Do not want to push more vcore as I am more than happy at 5.1GHz all core stable...
R20 uses AVX which raises voltage on intel processors. Unless you use adaptive voltage(and offset the addition of core voltage) or lower the avx multiplier in the UEFI, you will have a harder time keeping stable versus non-avx workloads.
Also, you want to use the LLC setting that causes the least amount of core voltage fluctuation from idle to full load. Highest setting is not always the best and can sometimes produce more heat/use more energy than necessary.
-Tj-
Senior Member
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Joined: 2012-05-18
Senior Member
Posts: 17914
Joined: 2012-05-18
#5798025 Posted on: 06/10/2020 08:13 PM
Llc back in haswell days didnt affect cpuv but cpu input voltage, I think it hasn't changed since.
Llc back in haswell days didnt affect cpuv but cpu input voltage, I think it hasn't changed since.
toyo
Senior Member
Posts: 449
Joined: 2008-10-15
Senior Member
Posts: 449
Joined: 2008-10-15
#5798056 Posted on: 06/10/2020 09:47 PM
Consistent with other CPUs since Coffee Lake with minor variation.
https://siliconlottery.com/pages/statistics
BTW, CB is pretty bad as a stability test, in fact it's as bad as it gets. I'd say the bare minimum is SmallFFTs without AVX in Prime95. Obviously, AVX stability testing must be impossible for Intel's 10 cores.
Pseudo-stability in CB can be achieved with low voltages. It won't be actually stable. You'll still get crashes and maybe BSODs. I worked with more than a dozen Coffee and Cannot Lake CPUs and none was fully stable until it went through 10-12 hrs of AVX testing in prime95, and yes, it will affect normal usage.
Consistent with other CPUs since Coffee Lake with minor variation.
https://siliconlottery.com/pages/statistics
BTW, CB is pretty bad as a stability test, in fact it's as bad as it gets. I'd say the bare minimum is SmallFFTs without AVX in Prime95. Obviously, AVX stability testing must be impossible for Intel's 10 cores.
Pseudo-stability in CB can be achieved with low voltages. It won't be actually stable. You'll still get crashes and maybe BSODs. I worked with more than a dozen Coffee and Cannot Lake CPUs and none was fully stable until it went through 10-12 hrs of AVX testing in prime95, and yes, it will affect normal usage.
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Thankfully my 10700K hits 5.1GHz at 1.295v. Good temps with 74 degrees C on the hottest core during Cinebench..though using a 360 AIO in the Arctic Freezer II...