I do not know if I can add much more info to a product that be already be review so much , except to say that I be happy with my card which run cool and quiet , even under the heaviest load and overclocked . I have not try overvolt it though it be voltage-unlocked . no need ... it be already so fast ! Edit : someone ask I for what kind of clock I could get and if there be coil whine . 1 . at 1.049 v -lrb- default volt -rrb- , I can get ~ 1.1 ghz on core . 2 . at max load , I do not get any appreciable coil whine . if there be coil whine , it be not hearable over my case fan .