this GPU be so efficient compare to the Nvidia gpus -lrb- especially my gtx280 this card be replace -rrb- . it be more powerful than my old gtx280 but it draw much less power and generate less heat . at first I be a little hesitant to migrate from Nvidia to ATI just because it do not have `` physx '' . but after play some game that support `` physx '' , I actually do not notice significant difference that I could notice immediately in fast-pacing game . one note that , the driver be a bit buggy in Windows 7 . under low stress , the bottom of the screen would flicker when scroll -lrb- ie . when browse the net -rrb- and it be somewhat annoying if the computer be use for web browse regularly . however , if the card be under high stress -lrb- ie . play game -rrb- , the bug seem to disappear . give that I install this card in a gaming machine , I do not feel this as a big problem . but people who use they computer for web browsing , or light office work , might want to consider this too . as far as Asus DirectCU II cool system , it be huge -lrb- even larger than the card itself -rrb- , but it do cool the card very well . it stay in somewhat low RPM even under load so it be not too noisy . temperature be in the 30s under low load and get up to 70-ish under full load -lrb- card be overclock to the maximum as well -rrb- . Bottomline , other than the driver itself , I could not complain about this card .