So, I'd like to know wether it would be better for me to get 4x gtx680's, (power questions aside, performance is what matters to me.) or 2x 690's for my new setup, aswell as what kind of performance bonus would taking 2x Intel Xeon E5-2687W mean over a single one (seeing as the chip is not exactly of the cheapest side), or an overclocked Intel Core i7-3970X . Thanks for all the help in advance, too.