http://www.videocardbenchmark.net/high_end_gpus.htmlU selected the GTX 465, costs 240$
It has the fifth place in their benchmark, which is def not bad.
But the GTX 470 is gonna give u a better performance.
All depends ofc on preferences ( ATI or Nvidia) & ur budget.
Also note, u can sometimes profit by buying a graphic card from Asus, MSI, Sapphire, ...
They take the original card/chipset & do small tweaks, gaining that little bit more performance. Also, they often sell it in a bundle. eg. GTX 465 + Starcraft II