Overclocking
Much like the ASRock X570 Taichi, the ASUS Prime X570-Pro proved a little underwhelming in the overclocking department, leading me to the tentative conclusion that my CPU has little headroom. My Ryzen 5 3600X managed a maximum clock of 4400 MHz at 1.45 V stable, which is a 200 MHz all-core improvement over stock and not a bad result for six cores and twelve threads at under 100 watts.
When it comes to memory-clock stability, the ASUS Prime X570-Pro proved excellent. XMP was perfectly stable, and I was able squeeze out 4200 MHz without touching voltages on my T-Force Xtreem kit. With this frequency, I was able to get into Windows and pass multiple loops of MemTest64 with no errors. That is a new record for this kit, on any board. It is safe to say AMD and ASUS have left the Ryzen memory woes far behind them.