Both the Xbox One and PS4 version of Battlefield 4 were demonstrated running at 720p resolution and 60 FPS, but as confirmed by Frostbite Technical Director Johan Andersson on Twitter, it runs at a higher resolution in the PS4 developer environment and the final resolution will be apparent when the game will launch.
According to said EA rep, the Xbox One retail version of the game will still run at 720p , 60 fps, the same as the alpha version showcased at Eurogamer Expo.
He concludes by saying that despite the flaws mentioned above he did not feel dissatisfied after standing in line for an hour to play ten minutes, and the feel of the game is exactly the same as the PC and PS4 version, so itll definitely be a must buy for those considering to buy the console.
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Original source, Game*spark
Lock if old or barely HD.