i7-4790K - AIR OC with FlanK3r

[FlanK3r]

So, Devils Canyon finaly in my hands. I will tetsing now only AIR cooling OC and few benchmarks, so stay tunde. After weekend we will see.

7

6

1


With M7H, Gelid Tranquillo and 4000 rpm fan Delta at it.

first stock (without multicore edhanced settings) settings and what the cooler at 4000 rpm

video:
https://www.youtube.com/watch?v=pTw6UJxsyBw


BIOS settings
stable for benchmark, but not for OCCT/LINX...

antisurge
bios7

Extreme Tweaker settings (voltages, turbo, multipliers etc)
bios1
bios2
bios3
bios4

Tweakers paradise+digi power control settings
bios5
bios6

First few benchmarks after OC
i7-4790K@4732MHz 4430cache Cinebench R11.5=10.36b

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

Any tips for higher clocks, example from 8Pack will be welcome (I cant get 4800 MHz Cinebench , higher voltages, laborate with VCCIN, VLX, nothing helped me....)

 

[FlanK3r]

Yes, over 90 C the hotest core. Nut as I said, this is stable for benchmarks, not for OCCT.

 

[FlanK3r]

Max air validation with 1.555V, I had +0.1 BCLK, but validation file corupted...

So only 5140 MHz 4c/4t

http://valid.canardpc.com/0rjzfi

PS:1.4V is OK, if you can cool it. Specially with delided Haswells or with 4790K (its colder than 4770K with same settings)

 

[FlanK3r]

yes, this is fun for OC guys ...For 1M Superpi BSOD after 2 loops

 

[FlanK3r]

in next life - yes

 

[FlanK3r]

you traitor FlanK3r - finally given in to the dark side eh?

btw welcome to overclockers.co.uk mate.

Thank you man

Default clocks - stock Intel settings

Average seems i7-4790K better choice for daily users. There are better OC assumptions than retails i7-4770k. Why? If you have i7-4770K with long-term CPU and with very good cooler managed up to 1.255V, with 4770K could be in practice around 1.35V. Thats why with higher voltage (and lower temps) you can get +200 MHz extra. Of course delided 4770K will be the same or better than 4790K without it.
With LN2 is no difference between 4770K and 4790K overclocking. Depends it on luck of CPU piece.

In idle CPU working at 800 MHz
i7-4790k stock CPUZ idle

CPU with Intel turbo boost (not edhanced turbo by motherboards specification) will working always at frequency 4200 MHz. Interesting could be high cache clock, up to 4400 MHz at stock, so with next OC and higher clocks will be harder get stable....
i7-4790k stock CPUZ


AIDA was tested at XMP profile 1866 MHz. Haswell in memory work these syntetic test scaling very well (and continue effective in higher memory clocks too)
i7-4790k stock AIDA memory

Fritzchess -all threads stressed
i7-4790k stock fritzchess

multithread Pi 80k size
i7-4790k stock multi80k

POV-RAY very stressed render benchmark in 151.26 seconds!
i7-4790k stock pov-ray

HWbot PRIME
i7-4790k stock prime

Cinebench R11.5 - very nice score for stock result
i7-4790k stock r11.5

The newest Cinebench R15 seems optimalized for Haswells, others good multithreads CPUs are worse here in higher difference (Ivy Bridge, FX) than in other multi tests
i7-4790k stock r15

wprime (1.55 vversion) - 174,592s
i7-4790k stock wprime

y-cruncher is very hard benchmark and stability test together, working example with AVX and its is the fastest PI number test, 500M in 110,5s :!:
i7-4790k stock ycruncher

3D Mark11, Performance test, my favourite new 3D Mark (result without OC GPU and without tweaks)...Grafika R9-270x DCII
i7-4790k stock 3D Mark11

Far Cry II test with R7-280x DC II, 156.43 FPS average
i7-4790k stock Far Cry 2

Unreal Tournament III benchmark, nice average 334,73 FPS
i7-4790k stock UT3=334.7fps

And what about OC tests result? Tomorow, finally

 

[FlanK3r]

Final day with OC tests is here. Finally. You finally see that. And of course, some power consumption of PC after OC.


I like ROG many years. I switched to ROG boards since 2008 and after these years Im happy with quality, BIOS and features. So today:

Maximus VII Hero
i7-4790K
Gelid Tranquillo+Delta fan 4000rpm
Asus R9-270X DC II
2x 4GB HyperX Fury 1866 MHz XMP (in OC tests are overclocked too)
HyperX SSD
Corsair AX1200 1200W Gold

The motherboard is hungry for CPU



And also for GPU


I overclocked CPU up to 4732 MHz with Vcore voltage almost 1.4V. Its a lot? Is it enough? I think is it average OC for benchmarks for 4790K. This clocks are not full stable in OCCT or so, but its OK for all benchmarks test here. Concurrently is not possible cool it 24/7 with aircooling in stress loading. I think with very good AIR or allinone liquid cooler you can use around 1.35 V. This is around +0.1 V more than before with 4770K (thermal paste at chip). But changing the CPU from i7-4770K to 4790K is non sense. Only in this case - you are hard Intel enthusiast or you have very bad i7-4770K (4200 MHz max stable with good cooler). If I actually picked a new i7, take the new 4790K.
And where is the hard stability? I had no time try it. Its very time consumed for me because I wanna every 0.1 MHz BCLK get to the final stability and back up to BIOS settings, change something and again the test etc...But I estimate frequency around 4600-4650 MHz

And now finally the benchamrks at 4732MHz and 1.39V Vcore.

Power consumption of PC (up described) without the monitor in Cinebench R15 is over 260 W. Thats not bad but at the same time not excelent. Its more than I measured at FX-8350 or i7-3930K, still lower 35 W than FX-9590.
spotřebapoOC

Nothing too practice, SuperPi today is just a good example of gross x87 performance without modern optimization.
i7-4790K@4732MHz 4430cache superpi 1M=7.738s
i7-4790K@4732MHz 4430cache superpi 32M=6m 52.090s

Multicore Pi is better in effectivity
i7-4790K@4732MHz 4430cache multithreadPi 80k=20.444s

Not much known test Processing power
i7-4790K@4732MHz 4430cache procesing power

x264 FHD over 30 FPS! This is an excellent result, they themselves try it on yours home machine spreads and when you reach it around 20 FPS, generally have very good computer.
i7-4790K@4732MHz 4430cache x264FHD = 30.07fps

HWbot prime test
i7-4790K@4732MHz 4430cache prime=6109b

wprime is also very quick with this CPU and OC.
i7-4790K@4732MHz 4430cache wprime1024M=156,344s

In Wprime you cna try single thread performance, enough is 32M result
i7-4790K@4732MHz 4430cache wprime32M singlethread

Winrar with cache and OC RAM over 2400 MHz is over magical 10 000 Kb/s. Awesome.
i7-4790K@4732MHz 4430cache winrar=10 210kbs

7-zip
i7-4790K@4732MHz 4430cache 7zip

Over 18k points in Fritzchess,simply wow for 8 threads
i7-4790K@4732MHz 4430cache fritzchess=18 396b

I like Cinebenchs benchmarks.
i7-4790K@4732MHz 4430cache Cinebench R11.5=10.36b
i7-4790K@4726MHz 4424cache Cinebench R15= 958b

AIDA CPU ZLIB, Queen, Hash, AES
i7-4790K@4732MHz 4430cache aida Zlib
i7-4790K@4732MHz 4430cache AIDA queen
i7-4790K@4732MHz 4430cache AIDA CPU Hash
i7-4790K@4732MHz 4430cache aida AES

Memory nad cache subtest, Intel is excelent here!
i7-4790K@4732MHz 4430cache aida memory

Gaming tests at 4732 MHz (GPU stock)
UT3 benchmark, better +3 FPS
i7-4790K@4732MHz 4430cache UT3=337.11FPS

3D Mark11 Performance
i7-4790K@4732MHz 4430cache 3DMark11=P8880

3D Mark Fire Strike
i7-4790K@4732MHz 4430cache 3DMark Fire Strike=5625b

Unigine Valley
i7-4790K@4732MHz 4430cache unigine valley

Sniper Elite is very demanding game on the highest settings, only 23 FPS, OC helped over one FPS
i7-4790K@4732MHz 4430cache sniper elite=23FPS

Far Cry II scales well with most of processors, help itself OC same type of processor? And I think so
i7-4790K@4732MHz 4430cache Far Cry II=203,61FPS

AVP benchmark
i7-4790K@4732MHz 4430cache AVP=78.5FPS

Maximum OC for Superpi and memory
After this category, each right Overclocker pushes CPU beyond limits, at least where it goes shorter SuperPi run and then validating. You can agree with it or you do not, for us, it's fun. Although the system can be in few seconds in BSOD is important to us see the numbers, the maximum clocks. Most mortals do not understand this, but this is my subjective opinion. They do not have the right experience and passion get the limits in competitions. Who to sniff once, hardly give up this hobby.
Longer Superpi 32M with 5 GHz was impossible, I got later or sooner BSOD...4C/4T was OK, with 2C/2T was CPU more unstable :-/..Interesting. In 32M I got "only" 4913 MHz.
i7-4790K@4913MHz 4412 superpi 32m=6m 35.382s

Superpi 1M 4933 MHz with 1.45V
i7-4790K@4933MHz 4430 superpi 1m=7.41s

Superpi at 5027 MHz 1.55 V
i7-4790K@5027MHz 4424 superpi 1m=7.160s

5128 MHz OC
i7-4790K@5128MHz idle

I finally got the CPU for a few seconds to 5141 MHz with voltage 1.555V. For idle you cna be safe with 1.55 V, dont worry. Of course, you dont boot at 1.55V, example you are booting with 1.4 V and 47x and others settings doing in OS with software.
i7-4790K@5141MHz idle air!
i7-4790K@ 5141 MHZ 1.555V validace air

Memory overclocking ? From basic 1866 MHz I got over 2666 MHz with 1.65 V! Excelent for cheap HyperX Fury.
i7-4790K@4812MHz 4511cache RAM 2672 MHz

Finally, a little humor here or there can be a beautiful bug. i7-4770K the last place from all processors. Atom is too strong
i7-4790K@4732MHz 4430cache aida bug lol

Hope, you like this minireview. Next time with LN2 and A10-7850K