Looks like you've still got OC room on the GTX 580 (once you get better cooling). Also, up the memory speed and you should see an improvement in your scores.
well i have been trying to get some better results... no luck with... no matter what volt... i got a rare BSOD vga turn off... the pc restarts and i got a BSOD code... i cant remember it right now... well.. same with my stable oc 900 core @ 1.1 V if cooler is not a 100% it will crash... i think its cuz of VRM going too hot... and this makes me ask if 1) 360 rad will be enough for my cpu and vga? maybe better temps than aftermarket air cooler and my h50? 2) a 120mm rad will be enough just for vga? with better temps than accelero xtreme plus ii? i have reapplied TIM and i have seen some better temps like 5 to 7 Âº difference... at 1.1v with 100% fan i got 67Â° with fan at auto like 85Â°