The video comparison of Killzone 3 vs Shadow Fall is not very... accurate. HDMI capture on the PlayStation 4 is not available at launch. In order to get the two videos side by side I had to "Share" the PS4 footage (compressed), download from my facebook (compressed again), render in editing software (compressed again), and upload to youtube (compressed again). End results hardly show the graphical prowess of the PS4. So, here are screenshot comparisons of the two games. Much better.
Killzone: Shadow Fall