Graphically, high settings @ 1080p would look better than low settings @ 4k.
For the xbox, most games run at or below 1080p. So, the game itself wouldn't run above that resolution. The TV might upscale the resolution output by the xbox to match the tv, but it won't be 'true' 4k.
Why in hell would you want a 4k to play at 1080p??
If you plug a 4k monitor to an xbone it runs at 1080p, so it may even be an 8k, it would have the same performances of a 1080 screen. It's the gpu that moves the pixels the monitor only shows them so on a 4k monitor you would simply have a grid of 4 pixels reacting as if it was a single one.
If you plug a 4k monitor to an xbone it runs at 1080p, so it may even be an 8k, it would have the same performances of a 1080 screen. It's the gpu that moves the pixels the monitor only shows them so on a 4k monitor you would simply have a grid of 4 pixels reacting as if it was a single one.
