http://www.gamersyde.com/hqstream_the_witcher_3_wild_hunt_ps4_xb1_comparison_v_1_01_-34665_en.html
I will stay away from the discussion...
Kidding.
From my opinion the resolution is only the difference I can spot from the video in terms of graphics (the PS4 is cleaner and have a bit less aliasing).
Performance wise the Xbone version runs even worst than PS4 version.







