ZGR
Platinum Member
- Oct 26, 2012
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Last week I helped my buddy set up his Sapphire 7900 XTX. Uses reference board and stock cooler. Using HWiNFO, we saw it boost out of the box to 3.0-3.3 GHz on the front end and shader clock, and would suck 450W+ of power in 8k gameplay via the GPU Power Maximum sensor. After heating up enough, the card will throttle down to 2.7 GHz at 0.850 mV, but still draw lots of power.
Memory junction temp would peak at 100C, with hotspot temp being around 10C below that.
We tweaked it down to 2.2 GHz a bit below 0.750 mV. Power draw caps out around 270-300W, but performance is barely lost. Memory junction temp now in the low 80's. Biggest issue at the time was the idle power draw, but that is already better.
Performance remains quite solid until around 1.7ish GHz. Then performance drops off a cliff. Overall a great GPU. Didn't get a single crash from all the games we tested.
Memory junction temp would peak at 100C, with hotspot temp being around 10C below that.
We tweaked it down to 2.2 GHz a bit below 0.750 mV. Power draw caps out around 270-300W, but performance is barely lost. Memory junction temp now in the low 80's. Biggest issue at the time was the idle power draw, but that is already better.
Performance remains quite solid until around 1.7ish GHz. Then performance drops off a cliff. Overall a great GPU. Didn't get a single crash from all the games we tested.