I just bought ASUS TUF Gaming VG289Q 28 inch LED IPS Gaming Monitor - IPS Panel, 3840 x 2160 Resolution, 5ms, it's a 60hz monitor, reviews that it's not listed on Nivida's g-sync list but apparently this does work with g-sync/adaptive sync.
Reading on this trend that I should of bought an Acer Nitro 144hz monitor but this was twice the price as the ASUS, I am running with an I7 9700f and 2080 Super graphics card and will be playing mostly single player games, with 4K and high settings enabled.
Yeah I was torn between the 2160 or 1440p monitors but I'm coming from a ps4 Pro which is supposed to do "Native 4k" but we all know its mostly 1400p upscaled. I just wanted to see what the difference was with actual Native 4k with enhanced settings.
I'm hoping most games will run at a steady 60fps, I think the adaptive sync goes between 40-60 fps on the monitor, I definitely don't want to play games under 40 fps anymore.