I have 2 computers in the house, one is a 2500k i5 w/ my old GTX 980 in it and it can save 4k playbacks even though the system plays in 1080.
My i7 5820k with a 1080ti only has the option to save in 1080p, though I play in 4k. What’s the deal? How come saving playbacks in 4k isn’t available on the machine that’s actually capable of gaming at 4k?