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.
Click to enlarge.
Clock speed behaviour for the Gigabyte RTX 3070 Gaming OC is incredibly consistent – it's probably the most stable frequency plot I have seen from any Ampere-based GPU so far, with speeds hovering at 1995MHz for the majority of our stress test.
We can also note how behaviour doesn't really change at all when switching from the OC BIOS to the Silent BIOS, as the frequency response is essentially identical between the two. The OC BIOS averaged 1999MHz across our stress test, with the Silent BIOS averaging 1995MHz.