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Aida64 vs Prime95 - Page 2

post #11 of 73
Well I had to try it to see if you're right OP!!!

Well here's what I got...

Volts were the same....1.160V 100% load but I see a 2-3C decrease in temp...using prime...

But the temps did not seem to jump about as much on prime as it dose on Aida....rolleyes.gif

Edit: this was with a 4.2 OC
Edited by Robbieboy - 5/13/13 at 7:25pm
post #12 of 73
Quote:
Originally Posted by tw33k View Post

I think the lesson to be learned is that there is not a single solution that will work for everyone. The best thing to do is try a variety of stress tests and see what works for your system

Nice work tw33k. I think this post captures it correctly. all of these are limited in the instruction set they call upon in the cpu and what cache load they produce so each brings a unique hit to the architecture. my preference has been to use at least 3 (IBT/linpak, p95, superPi 32M, and AID64), but not for more than a few hours on any. Maxing out the ram is critical. In addition to gaming as a stressor, I'd add one more: download a copy of Chimera 1.8rc and run it's benchmark - it will use 100% RAM and hang many systems.

With iGPU chips, none of these stressors actually light-up the entire die... but how many overclockers are using the iGPU anyway.
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post #13 of 73
You definitely need to run more than just one stability test, and even if you run them all you still need to use your rig for a week testing all your program/games to see if the oc holds.

Also I would have to say your Prime95 version is way out of date, and most people do not use those settings. Default torture test settings so 8-4096, 15min, and use whatever number in memory used so at least 90% of your available ram is stressed as shown in task manager.

If you have time I might suggest redoing the Prime95 test with 27.9 and the settings above, and you can also add IBT at maximum, and Intel’s XTU to the roundup.
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post #14 of 73
Is the voltage measurement tool from a DMM attached to the voltage reading points and connected to your PC via a serial port?
Wish I had that one.


// Edit
You might also be interested in this sheet:


I didn't let the tests run for 2 hours though, only for about 10-20 minutes, but there's not much change beyond that anyway. Also these are Open Hardware Monitor readings, so not the real voltages measured with a DMM.
Vcore in Prime95 v26.6 with a 960k FFT size settings seems to produce the lowest Vcore, it seemed to stay longer on 1.336v compared to LinX or v27.9 with 60k FFT (really wish I had that DMM of yours).
Edited by spoonium - 5/18/13 at 3:28pm
post #15 of 73
Thread Starter 
The DMM connects to my PC by wireless USB and the software records the readings in real time
post #16 of 73
No I want it even more. smile.gif
post #17 of 73
I've also used Aida64 for years, since it was Everest and I'm now finding out it has a stress test. tongue.gif

I pretty much use it to get sensor readings on the screen of my Logitech keyboard (did before with the G15 and now with G19), and I used to run some benchmarks with it but haven't done in a long time.
post #18 of 73
Thread Starter 
It was cheap too the (DMM). $120 I think I paid.

@justanoldman...you have totally missed point of this thread. These tests were run on a test bench, the sole purpose of which is to run tests. It's not about testing the stability of the system. Running Prime95 again with different settings would do what? Lower the voltage required? I doubt it. Just because a specific test of stability works for someone does not mean that is the "right way" or the "only way" either. Would the test bench crash if I played a game? Watched a video? I don't know and never will because it's not used for those things...it is a test bench.
post #19 of 73
^Sorry, wasn’t trying to bring in a stability argument. I don’t know exactly how you ran it, but it could definitely change the temps. Since temps was a part of your argument and also stressing ram, I though the testing was incomplete. To compare Prime95 to something else is fine, but to use a very outdated version, run it with less than optimal settings, and to not set the ram level high enough renders the conclusion incomplete. Just my opinion.
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post #20 of 73
Different FFT sizes will produce different load scenarios, which is why you see that rather large fluctuation in your Prime data.
If you choose only one FFT size (see my sheet for examples), you will receive much more stable results. I assume the AIDA test does basically the same, testing the FPU only with specific calculations and not wildly variate as the default setting for Prime does.

Also, in v27 support for the AVX instruction set was added to Prime, so you will see higher temps and more watt usage than in previous versions. Vcore doesn't seem have changed though compared to 26.6 (again, see my sheet). I don't know the differences to 25.11 though.

And LinX does basically all of it. The lowest Vcore, the highest temps and the highest watt usage. It will fluctuate as well though when finishing a round and starting a new one. But only then.
Edited by spoonium - 5/18/13 at 4:12pm
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