yeah, but you're sacrificing frame rate cuz you'd be making the GPU process stuff at a far higher resolution, so it might only do 1/2 or 1/3 of the frame rate you'd get if you kept it at 1080p. if the output frame rate at the 2k/4k is still above 60fps then you'd probably benefit from the extra processing, but if it results in an output frame rate of 17fps or something like that, it's probably just making your experience worse.