Simplified explanation of how the PS4 is twice as strong graphically as the Xbox One

[FiliusDei]

I'm not a graphics person but why isn't killzone, knack, driveclub and second son running at 60fps???

I know the ps4 is a very powerful machine...so I was expecting 60fps/1080p on all first party titles.

Anyone thinks the next uncharted will be 60fps??