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How much of a stress test is Furmark?

post #1 of 7
Thread Starter 
Is it like prime95 is to a cpu? When i'm testing my gpu in furmark temps shoot up to high 80s C, however after 2 hours in game my gpu temps never exceed 64C. Unfortunately my overclock, 950/2150 @ 1.075v passes in furmark after 10 minutes, however fails in game after 10 minutes...i don't really get it, no artifacts in games, but after a time the screen flashs black for a sec and resets itself back to default clocks..
Edited by venomblade - 2/26/11 at 11:07am
post #2 of 7
Furmark is pretty good. It definitely stresses the hell out of your gpu, you probably will never reach those temps in-game. Try to max out furmak and see what happens. Does it do it in every game or just one?
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post #3 of 7
I found it wasn't much of a stress test, more of a maximum temperature indication.
A couple years ago when i started folding I ran furmark for several hours, trying to fine tune my overclock on my gtx285s, found my max stable & went to start folding, crashed about 10 seconds after loading. Same for 3d benchmarks.

Long story short, furmark stable wasn't even close to folding/gaming stable.
    
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post #4 of 7
Furmark is supposed to be a stress test for GPU stability.

The reason that it causes your temps to hit high 80s is that it's putting your card on full load (similar to how Prime95 puts your CPU to full load).

Your GPU (and CPU) should typically never hit full load during normal everyday usage or gaming.

As for why it's not keeping settings while gaming as opposed to Furmark itself, can't really tell you much there as I don't OC my GPU's... I just usually pay a little extra for the OC'd versions that're under lifetime warranty.
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post #5 of 7
When your clocks reset to default, it's likely because the driver crashes and recovers. I know my card defaults after a driver crash. It's a sign of an unstable OC. Lower your OC and it should stop resetting.

As has been said, Furmark doesn't show all instabilities. Cards can be stressed in different ways and you'll never know what will make it crash. My old 8800 GT crashed easily in COD4 when the memory was OC'd, but never crashed in other games.
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post #6 of 7
Thread Starter 
Alright, i was just bummed out on how inferior my card is when overclocking compared to other brands..guess i gotta compromise
post #7 of 7
Turn up the AA and watch your card cry.
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