The Call of Duty series has a long and storied history throughout its releases over the years on the console as well as the PC.
To that end, a redditor going by wanderersguild has created an interesting picture to showcase the history of the game's resolutions over the years, starting with Call of Duty: World at War on the PS3 and Xbox 360, all the way up to Call of Duty: Ghosts on the Xbox One and PlayStation 4, the latter of which boasts a resolution of 1080p over its Xbox One counterpart. You can see how huge the variance is in the picture he made.
