Last night, Mark Rubin from Infinity Ward took to twitter to answer the rumours that had recently been circling the internet.
Rubin confirmed that the Xbox One version of the game will run at 720p upscaled to 1080p, whereas the Playstation 4 version of the game will run at a native 1080p constantly.
Here's Mark Rubin, Infinity Ward Executive Producer's statement:
Hey, been on the road last couple weeks so haven’t had a chance to update, but wanted to confirm that for Xbox One we’re 1080p upscaled from 720p. And, we’re native 1080p on PS4. We optimized each console to hit 60 FPS and the game looks great on both. Still on the road, but glad to see the great reception to Extinction. Can’t wait for next week's launch.
For those who don't know native resolution is technically and visually superior to upscaling. With upscaling, a method used a fair amount on the Xbox 360, used to improve the overall look but remember, upscaling cannot add detail that wasn't there in the first place.