costs a bit less than the 660ti for slightly more in performance. however, memory bandwidth can be a problem depending on your preference in AA settings & resolution. but @ 1080p + modest AA settings, not a problem in most cases.
hasn't stop most people from OCing, just to push a bit more value off their card. give it a mild OC, and you got yourself a card that performs better if not equal to the 660ti/7950 for considerably less. as long as the case has a good air flow, and there's enough power supplying your PC, there's not much to worry about.
plus you don't have to OC now. give it a run at stock. once it starts struggling with newer games down the road, say, in two years, you can OC it. that should give you some time to save up for a newer, better GPU.