looks like someone got their facts wrong. both xbox one and playstaton 4 plays 4k VIDEOS, not games. both are no where near capable of playing games at that resolution. The playstation four has better specs than the xbox one only time will tell if that spec leap will be enough. By the way this video is old and it was never confimed, but it stand true that the ps4 is more powerfull just that the percentage is unkown. but it already show it mark,
Ghost ps4: 1080p xbox one 720p
bf4 : ps4 900p xbox one 720p
there is a lot more just search for yourself.
but at the end of the day be happy with your xbox one just like im happy with my ps4