It’s now been confirmed that the Xbox Series S won’t support Xbox One X enhancements when playing Xbox One games, but will instead load the Xbox One S version of the game and then apply its own enhancements.
This was first reported by Digital Foundry who noted that it was unlikely that the Xbox Series S would be able to support Xbox One X enhancements due to the fact that it has less memory than the Xbox One X.
These enhancements include Xbox One and Xbox 360 titles that were upgraded to support higher resolutions of up to 4k, HDR support, faster frame rates and improved texture filtering on the Xbox One X.
In a statement provided to VGC, Microsoft confirmed that this would be the case: “To deliver the highest quality backwards compatible experience consistent with the developer’s original intent, the Xbox Series S runs the Xbox One S version of backward compatible games while applying improved texture filtering, higher and more consistent frame rates, faster load times and Auto HDR.”
Obviously, games should still run better than they did on the Xbox One S, due to the obviously increase in specs in the Xbox Series S.