Here we present the average clock speed for each graphics card while running the 3DMark Time Spy stress test for 30 minutes. We use GPU-Z to record the GPU core frequency during the Time Spy runs. We calculate the average core frequency during the 30 minute run to present here.
In terms of clock speed, we can see slightly erratic behaviour from the RTX 3090 Gaming X Trio. In terms of average clock speed, it's fine, delivering 1832MHz across the 30 minute stress test. However, we can see from the scatter graph that the clock speed was bouncing around fairly aggressively – usually we'd expect a smaller spread, but the Gaming X Trio was dropping below 1700MHz at points, before bouncing back up to over 1900MHz the next second.