Originally Posted by slaWter
In my opinion, if a game is borderline not playable and overclocking makes a difference, you'll most certainly run into a situation in that game when it's back to unplayable again. Those usually <10 FPS you gain with overclocking are not enough to make the difference.
10 fps is pretty much the difference between the 480 and 580. Why waste money to buy a 580 when you can just overclock the 480?