Higher numbers mean nothing if the performance suffers.
That's the philosophy developer Naughty Dog has embraced for Uncharted 4: A Thief's End : They'll try for 60 frames per second but they won't push it if it means sacrificing the game's performance.
This according to game director Bruce Straley, who said the demo we saw at the PlayStation Experience was locked at 30fps, but the game is now operating at a higher point. As he told Edge (cited by Videogamer ):
"We're actually above 30, but we locked it [for the demo]. We're going to do whatever it takes to make the game we want to make. If it means we could go for 60 but lose something that would really impact the player's experience, then it's our choice as developers to say, 'Well, we're going to go for the experience [instead of] the 60 frames.'"
All the Uncharted installments have run at 30fps but last year, Naughty Dog's Eric Monacelli said they were going for 60 with the upcoming PlayStation 4 exclusive. Don't forget that The Last Of Us: Remastered managed 60fps, so the team can definitely do it. It's just a matter of "making the game they want to make."
Related Game(s): Uncharted 4