What is the equivalent to Nvidia GTX 560 for AMD GPU in terms of performance? And at this range of GPUs which do you recommend? I like GPUs that use less power and produce less heat, and very quiet fans.
here is a quick look at equivalent cards, you can see 6870 is on the same level as 560 and is at a good price point right now. the 7770 is just a step below but real life performance should be very close.