3920xm and iGPU...max clock?

Anyone know what the max clock you can over clock the iGPU to? I know the max clock is 1300mhz but i wasn't sure if anyone has ever overclocked it or knew what its ranges were...would 1500mhz be way to high? Without a GPU fan again and the iGPU is just barely enough to handle a few games and with a little overclock the games i am tinkering with AOE3 and what not would run almost perfectly with a little overclock

http://semiaccurate.com/2012/04/23/overclocking-intels-hd-4000/
found this so i am going to thinker with voltage and stuff

Well have 100A
14x
50mV

and it is running. I went a little higher than their chart. I don't feel like tinkering that much so this little boost should be enough for AOE3 so i am happy. It isn't worth the time to tinker farther than that plus the extra voltage needed gets super crazy above 1500mhz.

Update i did .1v (100mv) and i was able to maintain 1500 mhz in AOE3 so i assume intel has the stock voltage higher on my 3920qm vs the 3770k in the article. Mine at default is 1300 or 1350 when theirs is 1050 so it wouldn't surprise me if my voltage is higher. Does anyone know how to check? This would help others know where to start.

but 1500 runs like a champ no issue. Makes AOE3 run smooth...not enough to get anti aliasing on low or high but 1200p with settings maxed (minus anti aliasing)

Tried 1550mhz with .1v 105mv and it was fine with no issue. I think the 3920xm starts at a much higher voltage than the 3770k. I'll try 1600mhz later. Also when i say stable i could play Star Wars: Empire at War with no issue. I never tried anything more then that because it never crashed for me in several rounds of games.


Tried 1600mhz with .1v/105mv and it crashed. I don't see an issue personally with pushing 1500-1550mhz but 1600 might require more than worth while. I doubt .1v/105mv is a big deal so any chip can push this long or longish term. I am leaving mine at stock voltage and just pushing 1400 24/7 and when i need the boost i'll add the .1v for gaming on igpu.

See post 13: i made a comment about 3920xm vs 3770k voltage...they maybe the same but no way to tell.

 

The 3920XM doesn't have an iGPU from what I recall. Unless I'm mistaken, they remove the iGPU from the "extreme" chips.

 

no it does. It was only the 920xm that doesn't. my 3920xm has it and i am going to try 1500mhz when i get a chance...only an extra 200 mhz but it'll help at least keep things more playable.

 

update read above

 

BTW i think your thinking of the 920xm and desktop E editions. The 6 core desktop ones have no iGPU

 

Why are you trying to game on the iGPU of a 3920XM? That's somewhat silly in all honesty.

 

GPU fan dead on 7970m so i am using that while i wait for the new one to come in the mail. Plus a crap ton of games actually play on the HD 4000...at least in my library. LFD plays maxed lol or close to it IIRC. Also gaming on battery lasts a hell of a lot longer too lol. so it works out at school when a plug is not near by...haven't used spare battery since GPU fan died...well maybe once.

 

yeh i running 1400 on my 3940xm too. with stock voltage

 

yea .1v and 1550 is a hit or miss...old games it is fine but you try like NS2 brick BSOD :/

 

have you tried 1450 at stock voltage?

 

1400 i had at .05v....might not be needed...i just added a few because of the chart. That was before i realized that the 3920xm starts at a higher voltage compared to the 3770k. That is because the 3770k stock is 1050v while the 3920xm is 1350. stock might be good til 1450. Just give it a shot

 

i read the chart too. dont know any difference in thermal and voltage control between 3920xm and 3940xm

 

BTW i maybe wrong on tthe voltage think in the chart it says 3770k is stable til 1350 before more voltage is needed so maybe it they are the same but no way to be sure. I had some stability issues at my settings i was using before so maybe they are the same..no way to really tell :/

 

just checked intel site 3770k igpu turbo clock at 1.15ghz so i think you are right 3920xm and 3040xm voltage is higher

 

it can overclock to 1350 in the article without extra voltage though

 

just tried 1450 without additional voltage. at least can pass xtu stress test.

 

Wouldn't rely on XTU stress test, had artifacts on the screen before while passing XTU.

What about some benchmarks, 3Dmark ?

 

just finished. crystal clear picture.
AMD Radeon HD 7970M video card benchmark result - Intel Core i7-3940XM,CLEVO P170EM

 

Here's a HSW bench, I think it was at 1500 or 1550. Gets hungry for volts at the higher clocks and the thermals are pretty bad for the amount of power the iGD uses. Thanks for the test, results seem fairly close.

Intel HD Graphics 4600 video card benchmark result - Intel Core i7-4700MQ,Micro-Star International Co., Ltd. MS-16GC

 

HD4600 is haswell.

Plus memory clocks matter much more than IGP clocks.

 

Sure, DRAM will make a difference but since both are running 1600MTS then bandwidth should be much the same. I wanted to show the difference between Haswell and IVB, HSW = Haswell. Not that much IMO. Should also be interesting to see what the GT?e does when it comes.

 

already out just no one puts into laptops :/

 

actually my ram is running 1866 CL9

 

My bad, saw 3DMark reported 800MHz so assumed you were running that. Thanks for the correction.

 

1500Mhz. no additional voltage. no artifact.
AMD Radeon HD 7970M video card benchmark result - Intel Core i7-3940XM,CLEVO P170EM

 

In games the hd4000 tails off and gains stop from core increases. Anandtech did an investigation.

 

you see an improvement according to semi accurate all the way to 1650 but the power requires for the gains really stop at 1500-1600 i ran i though 1500-1550 or whatever i said back earlier and called it a day

 

aorund 25 watt is not that serious i think

 

when 1500 takes 17/19 that is a big difference IIRC. got my new gpu fan so haven't touched iGPU