Very clear difference, huge between the two, but to be honest, I think I wouldn't care if I was playing. Graphics have advanced to the point where "bad" graphics are still good enough that if you're playing the game solely to play the game (as opposed to the people who make it a point to try to determine the graphics) even the "bad" graphics are fine and don't disrupt gameplay.
EDIT: Provided, of course, you're not playing on an Xbone while someone is next to you playing on a PS4, giving you the chance to see the side by side while playing.