help me decide please (2 770s or 2 680s?)

alexmurr

Honorable
Aug 16, 2013
15
0
10,510
Hello, i want to know if 770 is better and has better performance than gtx 680.
And also, if 770 is better should i sell my gtx 680 to get one? (right now i have money for 1 card, idk if its better to sell gtx 680 to get 2 770s)

ALSO DO HX850 CAN HANDLE 2 770???
THANKS!