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Intel Core i7-8086K Coffee Lake Review (Page 7)

Steven Bassiri | Jul 10, 2018 at 10:00 am CDT - 1 min, 10 secs time to read this page
Rating: 92%Manufacturer: Intel

Power Consumption

Intel Core i7-8086K Coffee Lake Review 23 | TweakTown.com

Our results here had to be investigated, and we found that the 10W difference is mainly due to differences in the VRM of the motherboard used to test either CPU. That 109W number is very close to the TDP rating, so at least there is no power cheating going on here.

Overclocking

Now, in the past, we have found that when the maximum single-core Turbo is randomly assigned to a core instead of statically (as in statically assigned CPU cores), that all cores can operate at the maximum at the same time. So if an 8700K can hit 4.7GHz on a single core, then all 8700Ks that we test can hit 4.7GHz with all cores at the same time. In fact, that's what multi-core enhancement does.

Intel Core i7-8086K Coffee Lake Review 24 | TweakTown.com

In this case, that should be 5GHz on all cores with low voltages, and we were able to achieve 5GHz on all cores with 1.25v. However, we wanted to go higher, and we were able to get 5.1GHz all cores with 1.3v, and without going into throttle range. We were able to boot into Windows at 5.2GHz, but the CPU could not pass out AVX based HandBrake stability testing. With better cooling, it should be possible to stabilize this CPU at 5.2Ghz, and with an easy de-lid, we see this CPU hitting 5.3GHz, or maybe even 5.4GHz.

Last updated: Nov 15, 2019 at 01:16 pm CST

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Steven Bassiri

ABOUT THE AUTHOR - Steven Bassiri

Steven went from a fledgling forum reader in 2003 to one of the internet's brightest tech stars by 2010. Armed with an information systems degree, a deep understanding of circuitry, and a passion for tech, Steven (handle Sin0822) enjoys sharing his deep knowledge with others. Steven details products down to the component level to highlight seldom explained, and often misunderstood architectures. Steven is also a highly decorated overclocker with several world records.

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