the difference from ps1 to ps3 is very clear.
from ps3 to ps4 not so clear. sure its better but its not a game changer. the bigger advantage should be less loading (if they utilise ram to cache game data instead of all on graphics display) and more consistent performance as the current gen can get choppy framerates. consistent framerate is more important than super high framerates, eg. steady 30fps beats 60fps which keeps dipping to lower amounts.
BT Infinity 2 Since Dec 2012 - BQM