My gaming rig has 2 Gigabyte GTX 780 OC [Ghz Ed.] in Sli.
Since I'll like some more FPS power under my hood, which is the most effective upgrade, considering that a GTX 780 Ti Sli upgrade doesn't seem worth it?
Titan Black Sli?
GTX 780 3way Sli?
GTX 780 Ti 3way Sli?
Wait for next gen...