https://www.gamespot.com/articles/god-of-war-gets-a-performance-mode-with-ps4-pro-on/1100-6457832/

The PlayStation 4 Pro will squeeze some extra juice out of God of War, even if you don't have a 4K display. Game director Cory Barlog explained that the upcoming game has a performance mode that still puts the Pro's extra hardware muscle to good use.

In response to a fan asking if he needs to upgrade to a Pro for the full experience, Barlog said: "Nope, you don't have to, but if you do 4k is AMAZING, if you have a 4k TV, of course. If you don't, we have a performance mode that puts the extra power to good use and makes the game run so so smooth!"