Digital Foundry: Assassin's Creed Origins: Xbox One X Tech First Look!

[Pemalite]

Radek said:

Xbox One X though? Don't expect 1440p 60 fps or even 1080p 60 fps due to CPU.

Setting your Xbox resolution to 1080P doesn't change what resolution the game is internally rendered at. Thus it will have ZERO affect on framerates.

If you run your game at 1080P, then the game is still doing 4k checkerboarding internally and downscaling to match your display.