While Digital Foundry has yet to see either next-gen version of Call of Duty, our experience with Battlefield 4 demonstrates that you can easily see the visual difference between them. The Xbox One version holds up well given the gulf in resolution, but it doesn't require a pixel counter to tell that the PS4 game is crisper and cleaner either. At last week's Battlefield 4 review event in Stockholm, we noted that the resolution change from one version to the next was obvious to many of the press in attendance, with some even suggesting on-site that the PS4 version was operating at native 1080p when its actual resolution was 1600x900. Battlefield 4 is a beautiful game generally, but if it has one Achilles' heel common to both next-gen platforms, it is the pixel-crawl and sub-pixel break-up derived from the post-AA technique. Xbox One has bigger pixels and fewer of them, so naturally the most obtrusive element of the presentation is more of an issue when displayed on the same screen