Going to be giving my current two xfx 7950's to my sons by way of building them their own gaming pc's. Now the question is what is the best single gpu for the money. Keep in mind that i will most likely be crossfire/sli which ever i get in the future when the need arrives. The 290x kinda seems like a waste of money with the 290 sitting there and the same goes for the 780/780ti situation. Does anyone really think amd will deliver on the claims of mantle as well as get it implemented in time before i upgrade again in 3-4 years anyway. Current build is in the signature thank you in advance for your suggestions