Well.... I switched my bios from default performance (right) to the power saving (left) setting. Superposition score back up to 6850 for my mid 1672/1100mv setting - but my min fps are now over 42, which is over 2 better than before. I'll try playing around with this bios setting. Or is left (towards the back of the case) the performance setting? My main bios setting seems to be borked for now though.