So I've just picked up an i5 4670k and gigabyte oc board for my new build and a palit 780 but a friend who has an asus 690 which is 3/4 months old decided he wants one and has offered me a straight swop im struggling to find comparisons as most are 780 vs 680 and 7970 and Titan there doesn't seem to be 690 against these. I will say I've wanted a 690 but I wanted some other opinions, I will likely be putting this system under water.