Have one of those nvidias and hairworks just sucks in comparsion what CDPR has done without it.
I didnt look at horses or some monsters or any such stuff you don't look anyways while playing the game.
I looked at geralds hair and the hair of npcs.

Well, seems like the sweet spot for my rig is Tesselation 32x and HairworksAAlevel=4. But then I cannot play in 4K anymore. Well, 1080p plus AA enabled will have to do...