here's my $600 build was wondering on if I should get the HIS Radeon HD 7870 GHZ edition or the EVGA GTX 650ti clock at 1 GHZ. Both cards have 2gb of RAM and the GTX 650 is a littel cheaper right now, this is $600 flat budget its for a buddy of mine that im building it for. He doesn't have much room to spend anymore.
in the UK these are near enough between £110-£130 each. if you are solely gaming, get the AMD. if you are doing some editing or conversions of files etc. get the NVIDIA. hope that helps :)