Is Two GTX 770 in SLI better than HD7990?

Mr_Noobie

Honorable
Jul 19, 2013
16
0
10,510
Thinking about dropping another GTX 770 into my PC but with the recent price cut of HD7990, $610 after rebate with 8 free games, I'm rethinking my options. So my question is, should I go with 2 gtx 770s or hd7990?