KeyboardMonkey

It works for any graphics card really. Check this guy out: How to Install A H60 to a Graphics Card - YouTube You basically take off your heatsink and replace it with the H60 with a custom mountable rack you get from here: www.triptcc.com It's works like a charm!!!

Definitely to GTX 570, even though the 660m is a generation up it is a mobile graphics chip and mobile graphics chips tend to be... more on the lower side of performance. Check here: PassMark Software - Video Card Benchmarks - High End Video Cards GTX 570 scores at 4,342 GTX 660m scores at 1,611

GTX 560 Ti or GTX 660 according to this: PassMark Videocard Value Chart - Performance / Price of Videocards