http://wccftech.com/xbox-one-x-supersampling-1080p/

Microsoft has explained how 1080p users will benefit from the additional power inside the upcoming 4K-capable Xbox One X.

On various occasions, Microsoft has stated that its upcoming enhanced Xbox One console will also improve games running on a ‘standard’ full-HD 1080p display, but didn’t reveal the specifics about how the console will accomplish that.