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

[unseenmorbidity]

Just bought a de-lid tool: http://rockitcool.myshopify.com/

Right, need to get cracking with the AIO - 5Ghz prime stable is the goal, but gunning for 5.2 😎

Why? Are you running sli 1080s or something?

 

[witeken]

Notebook Check found HD620 to be 20-30% better than HD520 at the same shader count and clocks.

Please provide source. The only reason KBL graphics might perform better is due to higher clocks.

 

[Arachnotronic]

Please provide source. The only reason KBL graphics might perform better is due to higher clocks.

Same clock range, but KBL spends more time turbo'ing to higher clocks. That's probably what has people tripped up.

 

[mikk]

Notebook Check found HD620 to be 20-30% better than HD520 at the same shader count and clocks.

Turbo boost runs higher with Kabylake for TDP constrained devices, driver difference in many cases as well. For desktop GT2 SKUs maximum boost is standard. That means performance don't differ with same drivers.

 

[Insomniator]

I wish 50% of the chip wasn't the useless iGPU.

 

[Dave2150]

Considering the 5GHz 6700K hype that did not pan out (majority of samples, including mine, cannot break 4.6GHz fully stable) I will wait for a larger sample size of 7700K overclocks + Zen 8C/16T performance before considering my next CPU upgrade.

+1, IMO now is the worst possible time for buying a new CPU.

 

[bbhaag]

+1, IMO now is the worst possible time for buying a new CPU.

Well I don't know it that's necessarily true. I just bought a 6700k at a great price off ebay. It's replacing a Phenom2 965 as my main rig. From what I can gather from the early leaks coming out on the 7700k it looks like my 6700k was a pretty good purchase. Of course only time will tell but I don't think it's a bad time to buy especially if the price is right.

 

[VirtualLarry]

I just bought a 6700k at a great price off ebay

I hope for your sake you get a real one. I'm hesitant to buy big-money CPUs, not NIB, on ebay. Too many re-lidders and re-etchers out there.
An old $5 E8400, nobody's going to bother faking. But a 6700K? Be careful!

I generally only buy CPUs from Newegg, mp3superstore (SuperBiiz), and antonline.

 

[bbhaag]

I was worried about fakes too when I bought it. First thing I did when it arrived was put it in the board, attach the cooler, ram, and psu then I bridged the power contacts with my screw driver. It booted right up and the Asrock BIOS reported it as a 6700k. I even oc'ed it too 4.4 just too see if I could. haha

 

[LTC8K6]

Please provide source. The only reason KBL graphics might perform better is due to higher clocks.

7500U review at notebook check is the source, of course...

 

[RichUK]

Not to be greedy or anything but could you check on the igpu,I know it's low priority for most people but it would be interesting to know if there is a change in EU numbers/clocks or if the en/decoding is hybrid or actually almost no cpu cost.

Here you go - for some reason, none of the apps really give you any detail, apart from iGPU load.

EDIT: Geekbench GPU test (with CPU @ stock) - https://browser.geekbench.com/v4/compute/276585

 

[TheELF]

Ah well,probably have to wait for proper drivers,thanks though.

 

[mikk]

Here you go - for some reason, none of the apps really give you any detail, apart from iGPU load.

EDIT: Geekbench GPU test (with CPU @ stock) - https://browser.geekbench.com/v4/compute/276585

In the Bios there surely is a GPU Clock Ratio setting, this should reveal the maximum boost.

 

[RichUK]

In the Bios there surely is a GPU Clock Ratio setting, this should reveal the maximum boost.

I checked, there isn't anything i can see - all i saw was the option to default to onboard graphics or PCI-e.

EDIT: This is all i see in the BIOS and when manually changed to 100 it still doesn't register in GPU-z, etc and remains greyed out. Windows apparently has the latest driver installed, though Intel's update tool suggests that one doesn't exist.

 

[RichUK]

So I've verified in my mind that temperature readings are accurate enough having tried real temp, core temp and HWInfo (using stock settings) - I will settle with HWinfo as I prefer it.

I've also ran IBT, OCCT with AVX capable linpack checked and Prime 95 Small FFTs for 10 mins each and Prime 95 produced the highest temps - so Prime 95 it is for stability testing and max temp testing.

So that's more checked off the to-do list, now to install the AIO water cooler and achieve Prime 95 stability - Goal is 5Ghz below 1.4v / 75 degrees.

 

[RussianSensation]

http://www.tomshardware.com/news/in...19.html?_ga=1.125112906.1314846558.1400174370

Looks like the board was the problem.

The new board did absolutely nothing to improve their OC. Looks like they got a dud 7700K.

"It’s a little hard to fault Intel at all for wanting to push a little more out of its revised core, as we found an extra 200MHz of overclocking capability in the Core i7-7700K. And because the Z170A Gaming Pro Carbon’s firmware functioned a little more smoothly than the previously-used model, I was even able to boot it at 5.00GHz, only to find that it wasn’t stable enough to run Prime95 at any frequency above 4.80GHz. And yes, I did try more voltage.

Other findings include that at 4.80GHz and 1.30V, the MSI-based platform still drew a mere 170W, and the CPU reached only 86°C. That extra thermal headroom is exactly what I needed to play around with more voltage, before finding that 4.80GHz is the best OC setting for this Core i7-7700K sample."

The vdroop on this board is ridiculous. I reckon once dialed in, I'll likely be looking at 5Ghz @ 1.4v (need to play around with offsets and LLC).

A better motherboard should be able to unlock the full potential of this processor. The Asrock Z170 Pro4S is pretty much bottom of the range / full on budget board after all. I'll await a decent Z270 to satisfy my inner geek.

There should be a setting for Load Line Calibration, try setting it to level 2. Then play around with it to see how much the voltage dips in GPU-z under Prime 95.

So you think 50c with a 5.0Ghz overclock is a high temp?? Heck I would be more then happy with those temps.Specially with air cooling cause upgrading to water the temp will only get better!! Could you try lowering the volts with the 5.0Ghz overclock? I would like to see what is needed for a stable overclock for running 24/7.

Edit..
Just seen your new post, those temps gotta be wrong. There is no way your hitting 89c without melting something.Also your volts are showing 1.36 volts I thought you were running it at 1.40v??

Modern Intel CPUs can do 99-100C
http://www.techspot.com/article/927-temperature-impact-cpu-performance/

Conclusion
The results of our testing can pretty much be summarized with the following three points:

• Modern Intel CPUs run at full speed (including the full Turbo Boost allowed based on the number of cores and workload) all the way up to 100 °C
• Even after the CPU hits 100 °C, the performance is not greatly affected until the CPU spends about 20% of the time > 99 °C
• While stock cooling only causes around a 2.5% drop in performance, even a budget after market cooler will dramatically improve CPU temperatures

 

[RichUK]

There should be a setting for Load Line Calibration, try setting it to level 2. Then play around with it to see how much the voltage dips in GPU-z under Prime 95.

Yeah level 2 is what I've been using. When setting a 200mv offset I get the following under IBT load:

• Auto - initially 1.36v then blue screen
• Level 1 - 1.344v
• Level 2 - 1.360v
• Level 3 - 1.376v - (temps are ~5 degrees higher than level 2, so must just open the flood gates for current)

Rather bizarrely, setting an offset of 120mv via the Asrock windows tool gives a stable 1.36v (LLC unchanged, so assume still set to auto in BIOS), but i need to set 200mv with LLC level 2 in the bios to get the same 1.36v. Strange.

As a side note, I've had to prioritise other life activities today, so AIO install tomorrow.

EDIT - I've also been able to boot at 5.2Ghz with an offset of 400mv, but temps got too high when i kicked off Prime 95 (out of curiosity), so backed it off to 5Ghz.

 

[RussianSensation]

Ya, you might be able to reach 5.1-5.2Ghz with AIO and LLC set to Level 4-5, but it seems 5Ghz is the sweet spot for your chip. AIO should shave 7-10C from your air cooler at max rpms.

 

[RichUK]

Ya, you might be able to reach 5.1-5.2Ghz with AIO and LLC set to Level 4-5, but it seems 5Ghz is the sweet spot for your chip. AIO should shave 7-10C from your air cooler at max rpms.

I'm hoping for a greater decrease in temps, but we'll see. Replaced the standard fans with 2 ML140 fans which are powerful and quiet, just need to install it but that'll have to wait to tomorrow.

 

[Excessi0n]

You aren't going to get temperatures much better than what you have now without delidding. The bottleneck is between the chip and the heatspreader.

 

[Dave2150]

Well I don't know it that's necessarily true. I just bought a 6700k at a great price off ebay. It's replacing a Phenom2 965 as my main rig. From what I can gather from the early leaks coming out on the 7700k it looks like my 6700k was a pretty good purchase. Of course only time will tell but I don't think it's a bad time to buy especially if the price is right.

I think it's very true. Zen is literally around the corner, and will probably be a much better purchase than a quad core Intel. At the very least it might affect prices. Buying CPU's when they are just about to be discontinued is always a mistake IMO (7700K wil have higher resale value in the future, most people see bigger numbers as better, even if Kabylake is just an overclocked Skylake).

 

[.vodka]

You aren't going to get temperatures much better than what you have now without delidding. The bottleneck is between the chip and the heatspreader.

+1 on the delid, it's quite unlikely Intel is back to soldering its 115x chips like in the Sandy days. OP, if you're feeling adventurous delid to get rid of the adhesive keeping the IHS in place, get some liquid ultra/pro to replace the thermal paste... then your AIO will be able to do its best.

I reckon 5GHz stable should be doable this way, probably higher.

 

[superstition]

How long will these chips last with more than 1.3V?

 

[RichUK]

+1 on the delid, it's quite unlikely Intel is back to soldering its 115x chips like in the Sandy days. OP, if you're feeling adventurous delid to get rid of the adhesive keeping the IHS in place, get some liquid ultra/pro to replace the thermal paste... then your AIO will be able to do its best.

I reckon 5GHz stable should be doable this way, probably higher.

De-lid tool was bought a couple of days back, just waiting for it to be delivered along with liquid ultra. 😉

 

[RichUK]

How long will these chips last with more than 1.3V?

Apparently Intel rate skylake up to 1.5v, which assuming is true, should probably apply to kaby Lake too.