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Intel Core i7-8086K Coffee Lake Review

By: Steven Bassiri | Intel CPUs in CPUs, Chipsets & SoCs | Posted: Jul 10, 2018 3:00 pm
TweakTown Rating: 92%Manufacturer: Intel

Power Consumption

 

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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.

 

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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.

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