BF4 can have 4xMSAA on PS4 and none on Xbox One for example and they both could run at 1080p & 60FPS. AA is very taxing. Most people wouldn't even notice that much of a difference. They could could also turn off things like VSync on the One. Its easy to get the Xbox One to play games at the same resolution and FPS. There is not much of a difference between a 7770 and a 7850. I can barely tell a difference between me running Crysis 3 on medium and high settings. Both look phenomenal.