For our temperature testing, we measure the peak GPU core temperature under load. A reading under load comes from running A Plague Tale: Requiem for 30 minutes.
As for temperatures, I've only tested one B570 card for launch so I've included the B580 Limited Edition just as a reference point. It's not a direct comparison as the B570 draws less power, but it gives you an idea. In any case, the ASRock B570 Challenger is a very competent design, with the GPU core hitting just 60C, while the GPU Global and VRAM metrics topped out at 66C, so absolutely nothing to worry about.
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