If both PS4 and XB1 versions of COD are 1080/60 and people are assuming the XB1 version looks worse, how would they look different? What are some things IW would have to sacrifice on the XB1 version?
Shadow map resolution, texture quality, anti-aliasing, transparency resolution (smoke, etc), object LOD, SSAO accuracy, etc. There are a lot of things they can scale back.