When pixel-counting screenshots gleaned from all 13 available stages, the 1360x1080 resolution is a constant fixture.
Right off the bat, we can confirm that while we do see the Xbox One version creeping to a full 1920x1080 resolution in the campaign's less taxing scenes, the same is not true of multiplayer. After seeing the PS4 struggling to hold 60fps at points in solo play, and with Xbox One's image quality diminished by its dynamic resolution, one question remains: does the single-player mode's performance profile have any bearing on online competitive play?
Having touched on Advanced Warfare's campaign yesterday, it's perhaps the multiplayer mode that represents the bigger hold over the Call of Duty series' fans.