Firstly, you can't compare a dual gpu to single gpu solution, take for instance, lets say the 790 is 2x gk110 chips, who would win ? 690 or 790 ? lol, then also the titan isn't overpriced, and its both a gaming card and low end work station card, in my opinion it is a well priced card due to its double precision unlocked. No it does have the features of some high-end work station solution but those card are $6000 price tags lol