Here we present the average clock speed for each graphics card while running the 3DMark Fire Strike Ultra stress test 20 times. We use GPU-Z to record the GPU core frequency during the Fire Strike Ultra runs. We calculate the average core frequency during the entire 20-run test to present here.
MSI's GTX 1660 Ti Gaming X is a factory overclocked model – its rated boost clock of 1875MHz is 105MHz faster than reference speeds. Even then, thanks to GPU Boost, we saw this card exceed that rated boost clock as its frequency averaged 1914MHz throughout 20 runs of Fire Strike Ultra. This is likely to be one of the fastest-running 1660 Ti cards, and thus essentially represents the best case scenario for a 1660 Ti's out of the box performance.