TBH dude of late I am just happy with what I have. I am gaming again, after a very long hiatus (that seems to happen every year right around summer). I am playing Borderlands 1 with my friend and we have nearly finished the DLC, which we had not touched before. I can run this game maxed out at 1440p on my Phenom 2 X6 rig with the GTX 950 @ 1600mhz.
So then I switched back to my main rig, obviously it isn't going to worry a Titan X.
After we have done this we are going to move onto Borderlands 2, as we bought all of the DLC today for £8. That will probably last us up until Xmas.
I then have a whole crap load of games to go back to. Quantum Break, Mafia III etc etc. The last thing I need is faster more powerful hardware. I mean for god's sake I have a Fury X with about forty hours on it, if that !
Once all three rigs are built I will use the X6 rig for day to day duties and some gaming. It is the quietest rig I have by a country mile. If I need anything more demanding I will use my Titan X rig, and if DX12 and Vulkan are better on the Fury X (which Doom will be and I have only played about three hours of that too !) then hey, I am sorted.
I would rather water cool and mod than keep throwing money at the likes of Nvidia..