AMD RX 6900 XT Review

For our temperature testing, we measure the peak GPU core temperature under load. A reading under load comes from running the 3DMark Time Spy stress test for 30 minutes.

Looking at thermal performance, despite using the same cooler design as the 6800 XT, we saw the 6900 XT run fractionally cooler in terms of the edge temperature, hitting a peak of 79C, with a steady state of 78C, so it's a couple of degrees cooler than the 6800 XT.

This may be puzzling initially, as we'd expect the 6900 XT to be the GPU running a little hotter, but the answer comes down to the default fan curve. In our testing, the 6800 XT would typically run its fans about 200rpm slower, resulting in the higher temperatures we are seeing from that GPU.

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