We know that the Xbox One X will output at native 4K on a monitor that supports that resolution and that it will supersample a 4K image image down to 1080p for those who have yet to upgrade their monitors, but people who game on 1440p displays were left in the dark as to what image they would receive. Microsoft’s Kevin Gammill from the Xbox Software Engineering team has now stated that the system will output native 1440p over HDMI on 1440p monitors.
I *knew* you were going to ask that, just ran out of space. On X, we will effectively output native over HDMI in this case at 1440p.
— Kevin Gammill (@CmdrDesslock) November 1, 2017
This is great news for anyone who has a 1440p monitor as they won’t receive an inferior 1080p image. While 1080p and 4K displays tend to be the ones people hear about the most, 1440p displays are also popular. Since the image is native, players won’t have to worry about it upscaling and losing some quality.
Source: Xbox Nederland