Yea, I didn't mean there was absolutely no difference. But you're hitting really hard diminishing returns at that point and for quite a big performance cost.I've tried it and can notice a difference with high levels of AA.
Anyone who thinks AA will go away after 4K is wrong.
4k + some lighter AA application seems like the sweetspot. At least until we get GPU's with a surplus of power, but anybody at 4k right now needs all the FPS they can get.