The PC Ultra high settings screenshots were leaked today and that shit looks really fucking good. I don't think the game looks bad on the consoles either, looks dope to me. Sure, Witcher 3 has better graphics in comparison but we don't know if FO4 does better at certain things than Witcher 3 yet, we'll have to see.
Sidenote, I've been playing Witcher 3 and it looks really good and it's impressive...but fuck you really have to channel your inner nerd hardcore to get into it. Fucking mages and elfs and shit lol. The only thing that keeps me going is Big Boss is the main character for some bizarre reason and the combat is really good too even though I still suck at it.