it would be nice if it were quiet, if i can OC more then it would be an added bonus, i do notice the diff between stock and OC to 800 thats for sure. especially in crysis, i play at 1360x768 with 2xAA and stock it bottoms out at 15FPS sometimes when it gets really intense otherwise runs at around 40, with the OC to 800 it only goes down to 20-22 and tops out at 50-55, this is a big improvement and makes it alot more smooth, this is testing with the demo though i will be buying the full version soon and it might be better optimized. But if the cooler is fairly cheap i think it might be worth it, the AC S1 is cheap and i have a fan laying around i could add to it. i think it would be worth it but its hard to say, ill wait till i get the full version of crysis and see if it is over 30FPS, if so it doesnt really matter much.