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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

Skylake Memory

 

The 6700K and 6600K have very advanced DDR4 memory overclocking capabilities compared to previous generations.

 

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The new platform has official memory support up to 41.33x (4133MHz) while on X99 it was to 26.67x (2667MHz). Many of you may have noticed that with X99, almost all boards could do 26.66x or below, but multiplier support north of that was dependent to the individual BIOS of each model motherboard. To clock higher on X99, many turned to using cumbersome BLCK dividers. This was because MRC only supported 26.66x maximum in the stock AMI BIOS code, and motherboard BIOS engineers had to tune the other multipliers themselves.

 

With Z170, support is far north of 26.67x, all the way to 41.33x. Don't expect to overclock that high on launch (they don't even have memory kits that high yet), but 36.00x works pretty well on the ASUS Maximus VIII Hero. Z170 is different, for starters, there are no BLCK dividers, just a BLCK that is now untied from the DMI and PCI-E, so you can clock up BLCK just like before Sandy Bridge (but you won't really need too since you have multipliers). Intel is also providing DDR granularity at 100/133MHz as opposed to 200/266MHz, meaning more multipliers.

 

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I used two kits for my testing, the first is a Corsair 8GB (2x4GB) 2666MHz CAS 16 Vengeance LPX kit, 2666MHz is on the more modest side for this platform as DDR4 starts at 2133MHz, and not 1600MHz like DDR3. DDR4 also provides higher frequencies, but latencies are higher, meaning you need to run at a higher frequency to get over the hit from the increased latencies. Z170 makes this easy to accomplish, and this kit is very easy to overclock with XMP. I will cover how this kit overclocks in future articles.

 

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G.SKILL sent over the second kit I used in this review, a Ripjaws V (2x4GB) 3600MHz CAS 17 kit, aimed at enthusiasts and extreme overclockers. The ASUS Maximus VIII Hero used in this review was able to load this kit up very easily with XMP, I will explore how this kit overclocks more in future articles.

 

 

Test Setup

 

This is the test setup for this review:

 

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ASUS was kind enough to provide me with a Maximus VIII Hero. It was very nice to work with the Hero, and its BIOS worked pretty well, as did overclocking. The aesthetics of the motherboard are also extremely appealing. We'll address this motherboard in full detail later on today in its very own dedicated review - check back for that soon.

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