Originally Posted by PureBlackFire
the 290X is not worth the extra cost. the 290/290X have everything in common except 9% shaders. the 7970 was a better card than the 7950 due to it's pcb and other things involved in how it could overclock. the Titan/Titan black have advantages over the 780/780Ti. the gtx580 had some strong advantages over the gtx570. the 290/290X would be the equivalent of gtx670 windforce vs gtx680 windforce (for example) where the ONLY difference is a small amount of shader performance that comes at a huge premium and doesn't even show itself in actual use.
So in other words, the 290X is overkill?