An MTU setting of 1472 is the ideal setting for both the PS3 and PS4. Mach. these machines are 32bit and 64bit machines. That way you will have no broken packets that have to be reassembled. This works great as long as all your server hops do not break the packets up between you and your gaming server you are playing on. Increase bit efficiency by about 10% , Not much... but noticable to some. In FPS games this can mean the difference from a frag or being fragged.