http://www.eurogamer.net/articles/digitalfoundry-2015-dying-light-performance-analysis
So sub 1080p Xbox One and a lack of anisotropic filtering on PS4 (what is up with that? bandwidth issues?)
CPU limiting but performance is more consistent on the PS4. Seems opposite of what Unity ( another CPU limiting title ) showed.
"We'll have a lot more to say about Dying Light in the coming days but it's safe to say that, at this point, the game runs consistently on PlayStation 4 with the Xbox One version lagging behind in certain areas, while image quality is close overall. We'll also be taking a look at the PC version of the game, which offers us the ability to scale well beyond the engine's console implementation. First impressions suggest a demanding title that seems to be CPU-limited, making it rather difficult to hit 60fps without dropping the distance slider down a great deal, but we'll have the full story later this week."