I run all games at max settings across at 5760x1080 at 60 frames. This includes racing sims, MechWarrior Online, Rainbow 6 and others on a stock 780ti reference cooler. My 4770K has been untouched since installation and has never been overclocked. I can only imagine the gains on one monitor regardless of resolution and have been considering an ultra widescreen. But even then, I would not need to overclock my system.
I guess I will never understand the constant tinkerers mind. I have been told by members of this forum that my system is inferior, but their superior systems have nothing but problems.
I use Precision for monitoring purposes only. I update my video drivers with at least two releases in between. Just a firm believer in not updating things just to do it.