Why in the world would you want a 1080p display just to get an extra 120 FPS? Even if you can perceive that difference (which I kind of doubt) you’re not going to get rates that high with your settings up high anyway. In The Verge’s tests only the old CS:GO got above 150 (it got over 400!).
“ In conclusion, putting a 1080p screen on this system is like sticking an MLB player in a Little League game. Sure, he’s gonna look impressive, but what is the point? These are 4K chips, and I’m not just referring to the price of this unit.”