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Intel "Skylake" Core i7-6700K CPU (Z170 Chipset and GT530) Review

By: Steven Bassiri | Intel CPUs in CPUs, Chipsets & SoCs | Posted: Aug 5, 2015 12:00 pm
TweakTown Rating: 94%Manufacturer: Intel

Clock for Clock Performance: CINEBENCH, PCMark 8, wPrime


For all the Clock for Clock tests I used memory speeds of 2133MHz for all CPUs, but I also ran the 6700K twice through once at 2133MHz and again at 2666Mhz. Since DDR4 has higher latencies than DDR3, and the Z97 and Z77 systems are running on their memory overclocked from 1600MHz to 2133MHz, I decided to also add in another standardized 6700K result named "6700K 4G/2666" which indicates that the memory on the 6700K is overclocked to 2666MHz to compensate for the increase latencies of the DDR4, later on I called this the adjusted 6700K results.






PCMark 8 Home Test





PCMark 8 : Microsoft Office Test




PCMark 8 : Photoshop Test








PCMark 8 Photoshop shows how this memory "adjustment" works. When the memory is at its default speed, the 6700K loses to the 4790K and 4770K (which both have their memory overclocked by 533MHz), but when I "adjust" the memory, the 6700K falls back into place as the winner.


This is an interesting trend to observe throughout the tests, because many of these benchmarks test both CPU and memory, and high memory latency can cause lower results.

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