Bottom: R9 270X for around $220
Middle: GTX 760 for around $250
Top: GTX 770 for a little over $300. HD7970/R9280X is not available right now because people are buying them up to mine.
Bottom: R9 270X for around $220
Middle: GTX 760 for around $250
Top: GTX 770 for a little over $300. HD7970/R9280X is not available right now because people are buying them up to mine.