Is already been said that the game will have solid 60fps, is just an option!
You can see Here:
http://n4g.com/news/1550251/the-last-of-us-on-ps4-yoshida-can-i-dream-of-60fps-druckmann-solidly-cutscene-fps-clarified
This is a game that maybe we'll make me buy a PS4.
AMD’s New Heterogeneous Queuing will End GPU Slavery Read more: http://wccftech.com/amds-heterogeneous-queuing-cpu-gpu-play-nice-nvidia-g-sync/#ixzz2ilP1XMac