I used MSI Afterburner to overclock the 2060 SUPER Founders Edition. My best result came with +125MHz to the GPU core and +950MHz to the GDDR6 memory.
Average clock speed under load
In real world terms, this saw our average clock speed increase to 1951MHz which is not a bad result at all. It's not quite past the 2GHz mark but should still result in a decent performance increase.
3DMark and games
Sure enough, our Fire Strike score increased by almost 2000 points, while our games testing at 1440p saw frame rate increases between 5 and 7 FPS. Not bad at all.