C

simple, not even GTX Titan X is enough for 4K, better sell & save money, use your current monitor & gc and wait until next generation Nvidia/AMD GPUs and more affordable 4K monitors with even more features come out, only then decide
also, i can't see any jaggies at 1440p/4K at all but then again i play at 24", can't say anything about 27" and above
people saying 144Hz/1ms/GSync/Freesync is not needed is like saying you don't need anything above 30/60fps, but once you've tried it, you'll never go back

This post has been edited by kingform: Jan 9 2016, 09:18 PM