While the actual specifications of the PlayStation 5 have been shrouded in mystery, we know that the console will come with AMD hardware that should be able to push 4K 60 fps on most titles. We now know of at least one game that will hit the milestone.
According to a Tweet by the game's developer, Marvel's Spider-Man: Miles Morales is confirmed to receive an 'optional' 4K 60 fps mode on the PlayStation 5. However, the keyword here is optional. The 'extra' performance will likely come at the cost of visual fidelity. Interestingly enough, even Assassins Creed: Valhalla is restricted to 4K 30 fps on the Xbox Series X. Consoles have been stuck at the 30 fps mark for decades, and it appears that things are going to be that way for the foreseeable future.
It'll be interesting to see how the 'default' version of Marvel's Spider-Man: Miles Morales will run on the PlayStation 5. We're probably looking at 4K 30 fps with no compromises in graphics quality. Sixty fps doesn't seem entirely impossible, but PlayStation 4 Pro-Esque checkerboarding shenanigans might be required.