Basic Skylake 6700K Overclocking review and performance.

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Exactly as I did with Haswell-E, X99 Launch I wanted to compile a short review showing the Overclocking of the new Skylake i7 6700K on very basic air cooling and mid range MB. Then potential buyers from OCUK can see what kind of overclocking potential this new chip has with very minimum effort. This is the highest priced Skylake offering running at 4ghz stock with hyper threading so you have a total of 8 threads can be handled simultaneously in applications supporting multi threading.

With this in mind I chose the well priced with decent features ASUS Z170 Pro Gamer MB, Kingston 3000mhz Predator DDR4 mems and a Zotac 980 Ti amp edition. I chose the Ti to remove the GPU bottleneck while benching at 1080p and shift the bottleneck back to the CPU.

All Skylake 6700K chips I have tested can run 4.5ghz+Core Clock, 4.1-4.5ghz Uncore on basic air without any bump from the 1.3v stock voltage. On this board I simply set 1.3v for core. 45 multi and XMP and there I was with stability in Windows running all I could throw at it. Good samples can of course go higher but all the samples I tried did have consistency in how they clocked and like I say 4.5-4.6 was a minimum which anyone could achieve by making a couple of settings.

Here are the benchmark results for this chip running at 4.5g with 3000mhz mems and 4.1 uncore on air.

3D mark 11


Firestrike


Terragen 3


Cinebench R15


To give the reader some idea of how Skylake i7 6700K at 4.5ghz Compares to Haswell E 5820K at 4.2ghz on air with the same cooling, 2400mems and 3.5 uncore I have provided screen shots of the Haswell E's performance below.

3D mark 11


Firestrike


Terragen 3


Cinebench R15


What was surprising for me about these results is that as expected on all multi threaded stuff the X99 platform smashes the Z170 Skylake. Terregan and Cinebench both heavily multi threaded benefiting from both cores and threads as do games based physics or combined tests.

What I did not expect and what is certain is in 3D game based benches the FPS was very very close indeed with Skylake faster yes but only by around 2-3% in 3D mark 11 and Firestrike. This makes X99 look amazing value considering its other benefits.

Wanting to explore this further I switched out the 980 Ti for a 970 which is the current mid priced gaming card of choice for the masses. In both Heaven and Valley which are only game tests run maxed out at 1080p the X99 system with a 970 clocked equally on both gave less than 1 FPS difference when benched.

For me at this specific price point X99 is king and does not need high speeed DDR4 to achieve this position.

i5's are not really my realm of interest but I can confirm the i5 Skylake samples I tried using these same basic settings all hit at least 4.5ghz. This consistency is much welcomed.

X99 Anyone ;)
 
Well, looks like x99 it is for me. Now, where's the new TWO deals? I expect some serious price drops on the 5820K!! :D

Nice Gibster!!!!

Also soldered IHS with X99 too. No IGPU which is creating heat etc etc........
 
Obviously X99 has quad channel memory and more slots to populate should you need a large amount of RAM. X99 is the platform for all in many respects.
 
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lol yeah seen that before Scott ;)

Totally correct Ace why would intel want mainstream to beat enthusiast. They would not. i5 is a great chip for lower end gaming. But for everything else its X99.
 
^ that and it has more cores, threads and X99 is a more mature higher featured platform.
 
Probably a silly question given the forum but obviously not everyone will be able to get these clocks, how do the two chips compare at stock?

I tried afew chips I think pretty much everyone can get these clocks easy. Give me abit and I will put up stock results I did that testing too.
 
5820K Stock






6700K stock






A very similar pattern to OC results. Games very close. Physics, multi threaded stuff X99 smashing.
 
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Well, I see 4.5GHz. Is this an "average" oc for these chips or what can we expect?
For example we all know 4790k can do 4.8G on average easy, most of the time.
What can 6700k do?

.....I wonder how it compares to my 5100MHz 4790k...:cool:

Show us some stability testing on your 5.1 chip. XTU, Prime, Real bench etc... prove it!!!

the 4.5 is a basic no voltage adjustment OC. One that anyone can do easy. 4.7 is average if you use 1.35v or so. This is about the same as 4790K.

5820K can do 4.4 on water no issue good ones even more.
 
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No need man 4790K junk on LN2. I still have some golden 4770K left that are.

But still a good chip yeah.
 
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... plus you ran the 5820k @ only 4.2GHz for this bench?

Isn't it hard to find a 5820k that won't his 4.5 on good air cooling or AIO cooling now?

If skylake is only showing 2-3% faster compared to a 5820k at 6.7% lower clockspeeds... I'd be more keen to seen 4.5 vs 4.5.

Or is it that you are only testing without voltage boost?

I showed a very easy Overclock all can achieve on both chips. Stock volts or low volts. Sure good chips can do more.
 
At i5 I would not say its dull. It really has a place here but at i7 mainstream platform is not my choice.
 
3770k I have 5.2 at less from back in the day. Still have the chip could do 6.8 on ln2 for 3d.
 
I may do X99 MATX build with Asrock Fatality MATX board. In which case I will no longer need this chip so it will be going!!!
 
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