Well the comparison thread has been locked as I was posting this, hopefully this will be ok in here, otherwise please feel free to remove this post.
Anyway, I've just finished the first prototype of my frame rate analysis system, it's extremely rough right now, but I think it's not too bad in terms of accuracy.
So I use the two clips from the comparison video I did yesterday, and it yielded some pretty interesting results:
This is PS4:
This is X1:
Quick explanation for the last 3 info. Max dupes is the maximum of times a frame was duplicated in the video, the two pace info show how many times (and why) the game deviated from a perfect 29.97 fps. Short pace means a frame was shown immediately after the one before (at 29.97 each frame is supposed to be duplicated once), long pace means that a frame has been duplicated at least twice. Obviously you want these to be as close to 0 zero as possible for the game to look smooth.
So yeah, the X1 version is unlocked, and (at least for me) it leads to very very ugly frame pacing problems, and in the end it looks way less smooth than on PS4.