Here we present the average clock speed for each graphics card while running the 3DMark Fire Strike Ultra stress test for 30 minutes. We use GPU-Z to record the GPU core frequency during the Fire Strike Ultra runs. We calculate the average core frequency during the 30 minute run to present here.
Averaged over our 30 minute run of Fire Strike Ultra, this Gigabyte GTX 1660 SUPER Gaming OC ran at 1957MHz, almost 100MHz faster than its rated clock speed. This is also about 30MHz faster than the Palit 1660 SUPER, which we have also reviewed for launch. I'd be surprised if we see a faster-running 1660 SUPER but I couldn't say for sure without testing more cards.