I gotta say, I was skeptical of using the XC3 Bios, but gave me a noticeably better score in Port Royal.
Settings of +120 on GPU clock with boost lock, 80% on voltage, +1200 on mem:
With XOC bios netted a PR score of ~14045
https://www.3dmark.com/pr/630391Same setting with the XC3 bios ~14,416
https://www.3dmark.com/pr/629943 Clocks with the XOC bios averaged around 1930 MHz, while with the XC3 bios was 2079 MHz.
Power draw behavior in BR was a bit weird under the XC3 bios (probably because XC3 doesn't have the third 8-pin). But card was power limited showing a draw of ~300W and pulling ~160W on the #2 8-pin. (300W seems low)
Under XOC, was still power limited around 410W peak, usually around 400W. At most pulling around 120W on the #1 8-pin and decreasing on each of the other two 8-pins.
May try flashing back to stock OC or normal FTW3 tomorrow and see what happens, but tonight it's Cyberpunk on the XC3 bios!