Intel 4790K OC Report ~

[dhenzjhen]

Don't expect to get 5Ghz on air with a gimpy cooling solution.

Pushed my chip to 5Ghz for benches, dialing in memory more.

http://fugger.ipage.com/32mair.PNG

Wow that's a lot of volts to get 5ghz. Tested mine also last time.
http://i.imgur.com/jtMHeUv.jpg

[FlanK3r]

Fugger, how hot is this chip in Superpi with 1.5V?

[Charles Wirth]

I didn't have monitoring up, I would imagine close to 80c

I was stressing it a bit with 1.5v, could be done at 1.4v but I was clocking up to 5.4G on air with that at boot.

[Charles Wirth]

Updated again, added more defined vcore to temp steppings.

[Dumo]

Wow that's a lot of volts to get 5ghz. Tested mine also last time.
http://i.imgur.com/jtMHeUv.jpg

Welcome to XS DJ

Nice cpu!

[dhenzjhen]

Welcome to XS DJ

Nice cpu!

Thanks

[BeepBeep2]

Don't expect to get 5Ghz on air with a gimpy cooling solution.

Pushed my chip to 5Ghz for benches, dialing in memory more.

http://fugger.ipage.com/32mair.PNG

As far as I'm concerned, validations between air and water are pretty much the same +-100 MHz max.
24/7 stability, yes...32M, pretty much the same as validations, 1 core load is not going to heat things up like crazy on good air cooling / AIO

EDIT:
Big welcome to dhenzjhen, about time!

[dhenzjhen]

Thanks BeepBeep2, bout time to join and learn from the elite folks here

Did some 3d runs with my chip also

05 http://i.imgur.com/bnybnua.jpg
05 http://i.imgur.com/f6OP4qS.png
03 http://i.imgur.com/NegtH9t.png
Cine 11.5 (request from OCN guy to run cine at 5.6ghz) http://i.imgur.com/i5UrBNk.jpg

[Fr3ak]

Interesting thread, thanks for all the information provided, Charles!

[Charles Wirth]

Thanks Oliver,

Welcome to XS and yes, very nice cpu. mine is unstable at 6.3Ghz

[FlanK3r]

4790K ready to play . First results at weekend with AIR (today Im working with baytrail vs Kabini review and at benchtable with i3-4330)

7

6

1

[chispy]

Nice , very helpful information. Charles if by chance you have a single stage phase unit around -35c load , can you please do a quick test for me and check max Mhz stable on any 3D benchmark ? 2 cores / 4 cores no HT, Thank you. OR Maybe someone who has tried can report this as well , maybe Allen , DJ or Michael who also play with SS and have a chip. Almost forgot , welcome to XS DJ about time bro.

[Buckeye]

Thanks BeepBeep2, bout time to join and learn from the elite folks here

Did some 3d runs with my chip also

05 http://i.imgur.com/bnybnua.jpg
05 http://i.imgur.com/f6OP4qS.png
03 http://i.imgur.com/NegtH9t.png
Cine 11.5 (request from OCN guy to run cine at 5.6ghz) http://i.imgur.com/i5UrBNk.jpg

3 posts !!!!

Where have you been DJ !!

[trans am]

hey Charles, This was a great read. I haven't been paying much attention to the new chips so its nice to see this. Lot's of useful information in there.
I appreciate all the time you put into this. take care

[Charles Wirth]

Thanks everyone, I have moved the 4790K over to water cooling for the next few weeks.

I was able to run the 5Ghz XTU, my cores reached 100c and there was a lot of throttle going on with 4c8t.

[dhenzjhen]

Thanks guys ^^

Looks like I may have found another candidate to go cold. 05 looks lil better compare to the first one
that did 1.395v.

32m http://i.imgur.com/8MczOKh.jpg
05 http://i.imgur.com/XP79f6q.jpg

[flesheatinvirus]

Fantastic results there, 5G at 1.4 ish is pretty schweet for that chip. Thanks again

[Charles Wirth]

DJ, you need to run AIDA 64 more, you are out of control fast and should watch read/write/copy numbers for best results.

Your sub timings are off, tWR I think needs to be a 5 @ 2666, 2800 if you are watching AIDA 64 hurts performance on write and copy by >10%

[dhenzjhen]

Thanks ^^ but not really doing 5ghz spi32m runs, just boot and go on both 05 and 32m just to test the chip on air.

[PedantOne]

you have really GEM like allways My is rock stable at 1.3V only for 4,6 GHz for 4,75 GHz i need 1,4V, 5 GHz is not reachable at 1,7V ...
With High end Noctua air cooler

[FlanK3r]

Quick tested yet, but stable seems up to 4700 MHz with 1.375 V. Hard benchmarks ending at 4800 MHz with higher voltages (1.44V). Gelid cooler+4000 RPM Delta fan :-)

[dhenzjhen]

Thanks guys ^^

Looks like I may have found another candidate to go cold. 05 looks lil better compare to the first one
that did 1.395v.

32m http://i.imgur.com/8MczOKh.jpg
05 http://i.imgur.com/XP79f6q.jpg

Tested last night and CB at -110 tried mucho vcore and high low VIN still didn't help

[FlanK3r]

i7-4790K@4732MHz 4430cache Cinebench R11.5=10.36b

wprime at 4732 MHz
i7-4790K@4732MHz 4430cache wprime1024M=156,344s

cooling air cooler Gelid Tranquillo+Delta 4000 rpm. I cant get more (maybe +0.1MHz BCLK) :-/. I hoped for 4800 MHz, but it crashed again and again. I tried steps from 1.35V-1.45V for Vcore and combination of vccin from 1.75 to 1.97V, tried PLX and still nothing. Seems average 4790K at air. Charles has better, I believe

[solofly]

PC Per managed 4500mhz at 1.2volts and that's it. Most people (maybe not around here but in general) including myself aren't comfortable going above ~1.2V for 24/7 usage. Normal voltage for the 22nm process is what, ~1.05V? Temps might be lower but it doesn't reflect in better overclocking. Mr Fugger has a golden sample in his hand, is my guess...

[FlanK3r]

looks like...There is my chip: http://www.xtremesystems.org/forums/...-Devils-Canyon