Interesting that they mention resolution difference then mention DX12. DX 11.2 was the update in February for Xbox One that bought the tiling technique for the console so the ESRAM can fit up to 6gb of data on 32 mb. And this is why 3rd parties arent hitting 1080p yet. They have to programme the ram differently and they arent taking the time to bother with it ( well at least some arent ). Games like Quantum Break which blow 3rd party games away are 1080p native.
DX 12 will have some liitle effects on Xbox One, but the biggest changes we will see are from first party developers who use Tiling Techniques on the Xbox One fast ESRAM. I expect 1080p 60 FPS Halo 5 to look absolutely out of this world. As will Gears Of War 4. Quantum Break alreay looks best next gen visuals so far and appears 1080p native.
