On a 1080P monitor, a GTX 770 or R9 280x would do you well. A 780 or 2 660 Ti's would be a little overkill. Wouldn't hurt in terms of futureproofing. Get 2 760s, not 2 660s. Or you could wait a few months (7 or 8) and get 2 860s in SLI.
It depends on what you are doing. 660 Ti beats the 780 and maybe 780 Ti (in some) in most applications. 2 GTX 760s would do better, 2 R9 280s would be best (also cheapest).
It depends on what you are doing. 660 Ti beats the 780 and maybe 780 Ti (in some) in most applications. 2 GTX 760s would do better, 2 R9 280s would be best (also cheapest).
On a 1080P monitor, a GTX 770 or R9 280x would do you well. A 780 or 2 660 Ti's would be a little overkill. Wouldn't hurt in terms of futureproofing. Get 2 760s, not 2 660s. Or you could wait a few months (7 or 8) and get 2 860s in SLI.