Call of Duty is the biggest video game franchise in the world, and holds the potential to drastically impact the success of the PS4 and Xbox One. Call of Duty: Ghosts, the latest installment in the franchise, will launch on older consoles tomorrow, but it will also be released for the next-gen consoles on their respective launch days. Unfortunately, not every port is created equal. The PS4 will be running at a native 1080p resolution, but the Xbox One will be forced to upscale from 720p.