Base XB1 is a fairly significant downgrade over base PS4, dynamic resolution scaler is about 100p lower than base PS4, framerate drops even lower, whereas base PS4 could maintain pretty close to 30 fps on indoor gameplay, base XB1 is low 20's even indoor, with drops as low as the low teens in the most demanding outdoor section of the game. Base XB1 also froze up for a full minute when approaching the demanding alleyway shootout segment. 

Xbox One X significantly higher resolution than PS4 Pro, Xbox One X minimum on the dynamic scaler is the same as the maximum on the PS4 Prop dynamic scaler. Higher graphics settings than base hardware on XB1 X as well. Framerate is a nit worse than PS4 Pro, indoor shootouts mostly 30 fps with a few drops, but outdoors can drop as low as 18 fps at times, especially while driving. DF surprised by the game running at lower framerate in CPU intensive areas of the game, since XB1 X has a faster CPU than PS4 Pro. 

Lol the XBox version just got a 4/5
https://www.dailystar.co.uk/tech/reviews/cyberpunk-2077-review-blockbuster-action-23166829
Nothing wrong with reviews....

Odd that One X runs slower than the Pro, same assets, just a bit higher resolution. What is going on with that Red Engine. Performance on PC is also an odd one, some high end PCs are faring worse than some mid range setups.