Interesting video review of the game from Inside Sim Racing. Covers PC, PS4, X1 If you don't want to watch the entire video you can go to the 26:20 mark and get the recommendations for which platforms the game runs best on. Further back you can see it run on each platform and he gives the good and bad. This guy recommend staying away from the X1 version for now.
https://youtu.be/O8E0vtQCN8A