Hey guys, as of right now I am using a single 780 ti 3GB EVGA Superclocked. I am wondering if I should upgrade to the Gigabyte Titan Black 6 GB or sli with another 780 ti 3 GB EVGA Superclocked or just stay the same. My power supply can run both, and I have a 1920x1080 monitor. Should I change or just stay the same as I am? I am fine with what I have, but a bit more mmph is something I wouldn't mind.