My i7 7700k Has Arrived - Insights, Benchies & Overclocks Inside (Now With Delid!)

[LTC8K6]

Devil's Canyon 4790K was a rather large leap in stock speeds over the 4770K and 4790, though. 500 and 400mhz. Plus, DC had extra capacitors added to it to help with power delivery, along with the different TIM.

A DC version of 7700K, or KL-X version, would need to be at pretty high stock clocks to be like the 4790K.

4.6 or 4.7 base and 4.9 or 5.0 turbo.

5.0 turbo would be a nice round marketing number.

 

[RichUK]

Devil's Canyon 4790K was a rather large leap in stock speeds over the 4770K and 4790, though. 500 and 400mhz. Plus, DC had extra capacitors added to it to help with power delivery, along with the different TIM.

A DC version of 7700K, or KL-X version, would need to be at pretty high stock clocks to be like the 4790K.

4.6 or 4.7 base and 4.9 or 5.0 turbo.

5.0 turbo would be a nice round marketing number.

So there is potential in this line of thought, and Intel clearly have that option in their back pocket.

The problem with Kaby Lake-X (unless I'm mistaken) is that the costs for the whole platform will be too much for the majority of users / customer who are already invested in Z170 / Z270, so the above could be a viable option for Intel to hold some ground against Zen.

 

[Dave2150]

so the above could be a viable option for Intel to hold some ground against Zen.

Intel's brand name will enable it to weather any storm Zen may bring. That said we still haven't seen Zen's single core performance, which should be crushed by Skylake.

 

[LTC8K6]

Looks like KL's IGP is indeed about a 20% improvement over SL on the desktop.

 

[mikk]

Looks like KL's IGP is indeed about a 20% improvement over SL on the desktop.

GPU performance is exactly the same, it's the same GPU. Differences can be only if there are clock differences from GPU or memory.

 

[LTC8K6]

GPU performance is exactly the same, it's the same GPU. Differences can be only if there are clock differences from GPU or memory.

See the test results in the KL thread.

 

[mikk]

We don't need tests, it is the same GPU. Only the media engine is changed which doesn't add anything to 3D performance. This is known since ages, I have to wonder why some people don't get it.

 

[LTC8K6]

We don't need tests, it is the same GPU. Only the media engine is changed which doesn't add anything to 3D performance. This is known since ages, I have to wonder why some people don't get it.

Okay, but I need tests.

 

[LTC8K6]

The ram was the same DDR4-2666 for both SL and KL, apparently.

 

[RichUK]

Goal Achieved

I set out to achieve 5Ghz at or below 1.4v and 75 degrees.

• 5Ghz @ 1.36v
• Average temps under 75 degrees
• VCCIO / VCCSA - Auto in BIOS (default)
• 24 hours Prime95 v27.9 Small FFTs - stable with no failures
  • I am comfortable with v27.9 over v28.10 (more volts / temps) to prove stability for my usage.
• I reduced the Kraken x62 fan speed to 50% and increased pump to 100% - the system is now silent for me.

 

[Chrisch]

Good solid overclock

 

[RichUK]

Good solid overclock

Cheers.

 

[RichUK]

And for those who are interested, please see the following benchmarks with my 24hr prime stable 5Ghz, DDR4-2800:

https://browser.geekbench.com/v4/cpu/1393935

CB-R15 (MT 1093; ST 215)

CB-R11.5 (MT 11.76; ST 2.44)

Blender V2.77 - Ryzen Render @ 150 Samples (45.47s)

Blender V2.78a - Ryzen Render @ 150 Samples (46.08s)

 

[FlanK3r]

Awesome results! Il join soon with to the club

 

[wingman04]

I like the looks of the i7 7700k.

 

[thesmokingman]

Can you run at 5ghz with faster memory and stable? Why no Prime Blend, small is not hard pass?

 

[RichUK]

Can you run at 5ghz with faster memory and stable? Why no Prime Blend, small is not hard pass?

Motherboard or memory won't allow me to run stable past DDR4-2800. I've already tested large FFTs at these settings on my i3 6100 with no issues and I presume the IMC is better quality on the 7700k.

I'll get around to testing it again with this processor at some point, but will be upgrading to Z270 and DDR4-4000 when Z270 is released, so may just hold off until then.

 

[frozentundra123456]

Motherboard or memory won't allow me to run stable past DDR4-2800. I've already tested large FFTs at these settings on my i3 6100 with no issues and I presume the IMC is better quality on the 7700k.

I'll get around to testing it again with this processor at some point, but will be upgrading to Z270 and DDR4-4000 when Z270 is released, so may just hold off until then.

So might you get better benchmark results if you cut back a bit on the cpu overclock and overclocked the memory further?

 

[thesmokingman]

Motherboard or memory won't allow me to run stable past DDR4-2800. I've already tested large FFTs at these settings on my i3 6100 with no issues and I presume the IMC is better quality on the 7700k.

I'll get around to testing it again with this processor at some point, but will be upgrading to Z270 and DDR4-4000 when Z270 is released, so may just hold off until then.

Memory speed impacts overclocks and voltage a bit. 2800 isn't very fast. I'm sure you could match the other 7700k user who was running 3200 iirc. I'm running 3733mhz on my skylake at 4.8 fyi. Also regarding prime, I don't bother with small fft, I run blend. Blend or bust for me.

 

[Arachnotronic]

So sadly, my board (Gigabyte Z170N-Gaming 5) does not support multiplier overclocking with the 7700K, even with the new BIOS that supports Kaby Lake.

The good news is that this is in a SFF system, so I'm more interested in seeing how low I can undervolt this thing to minimize load temps. Fortunately voltage adjustment works...

I do want the XMP support to get fixed though, I'm using fast DDR4-3200, but it's limited to DDR4-2133

 

[DerpEinstein]

0% ipc gains and the infamous horse semen tim makes a return! Intel has become like a fat, lazy, slob resting on it's laurels. What a joke! The industry would be some better off if intel hadn't abused it's monopoly to crush the competition.

 

[wingman04]

Motherboard or memory won't allow me to run stable past DDR4-2800. I've already tested large FFTs at these settings on my i3 6100 with no issues and I presume the IMC is better quality on the 7700k.

I'll get around to testing it again with this processor at some point, but will be upgrading to Z270 and DDR4-4000 when Z270 is released, so may just hold off until then.

Looks like your IMC is having trouble with memory overclocking since it was working with the old CPU.

 

[wingman04]

So sadly, my board (Gigabyte Z170N-Gaming 5) does not support multiplier overclocking with the 7700K, even with the new BIOS that supports Kaby Lake.

The good news is that this is in a SFF system, so I'm more interested in seeing how low I can undervolt this thing to minimize load temps. Fortunately voltage adjustment works...

I do want the XMP support to get fixed though, I'm using fast DDR4-3200, but it's limited to DDR4-2133

Do you think it is a Bios problem for not supporting overclocking with the i7 7700k?

 

[LTC8K6]

0% ipc gains and the infamous horse semen tim makes a return! Intel has become like a fat, lazy, slob resting on it's laurels. What a joke! The industry would be some better off if intel hadn't abused it's monopoly to crush the competition.

Why were you expecting ipc gains from the same core as Skylake?

 

[DerpEinstein]

Why were you expecting ipc gains from the same core as Skylake?

Just because it was also on 14nm didn't mean it had to be the exact same core.