I'm wondering which one of these I should get for my desktop. On the one hand, the GTX 260 performs better (according to http://www.videocardbenchmark.net/high_end_gpus.html), but on the other hand it doesn't support DirectX 11 like the 5770. I'm not a hardcore gamer by any means, but I still want to be able to play games at a moderately high setting level, so what should I get?