Should I upgrade my GPU? and what can I get before bottlenecked?

[Killora]

Let's not forget to put the 7870 XT/LE somewhere in there.

But generally, that's the layout of the AMD cards. It's generally stayed the same the last few years, give or take some weird numbers in different tiers.

[fatalwario]

good guide here http://www.tomshardware.com/reviews/...view,3107.html