Radeon 6970 cooling

patapat

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Sep 29, 2011
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Picked up a used 6970 yesterday and after some furmark testing it seemed to run hot, around 90C. The fan was at about 40%. Later my friend realized that they ran hot because we were running the monitor at 120hz. After lowering it 60hz the temps were more acceptable at ~75C.

I'd like to play at 120hz, but 90C is a tad too hot for me. Can you guys recommend a good gpu cooler? He mentioned the Arctic Accelero Xtreme Plus II. Thoughts on that or any others?

Thanks for the help!
 
False.

Regardless of your monitor setup (dual monitor, refresh rate, etc...), at 100% load, the temps would be the same.
You're pushing the GPU to the max so you should be getting the same temps on successive tests... (unless scenario changes drastically: fan breaks halfway through, or you tested a clean card vs a dust-filled card 6 months later)

I'm guessing he measured temps starting from idle - lowering refresh rate to 60Hz would switch the card back into 2D or low power mode. The 6970's core/mem clocks in 2D mode are 250/150Mhz respectively. There is a middle power mode where the clocks are 500/1375 (this is where 120Hz is run). High performance gaming clocks are 880/1375 by default (depends on particular brand).

If he benched from 250/120 to 880/1375 for a minute, then I can believe the ending temp was lower at 75C, provided he let the idle temp settle down before starting.

However, if he continued benching for a more prolonged period of time, the ending temp would still be 90C.

That's a good cooler.
 
I think you're confusing fps with refresh rate. With a single 6970, it's pretty unlikely he's hitting 120+ frames in Furmark. I doubt he's even hitting 60s...

Regardless, OP mentioned he would like to play in 120Hz so if he turns on vertical sync, it would be at that rate.