Killzone is 1080p and Titanfall is at 792p, There is no denying that Killzone is at a higher resolution however this might be because Killzone is sacrificing graphic details for a higher resolution!
Notice how Killzone on PS4 has a lack of variety of colors. Killzone tends to blur things when you walk around in order to hide graphic hiccups.
Killzone Shadowfull (PS4)
Now look at Titanfall! It looks clear and chrisp! Titanfall can run at 60FPS while Killzone Shadowfall just got a patch to reach 30FPS http://www.gamespot.com/articles/killzone-shadow-fall-patch-adds-ability-to-lock-campaign-mode-at-30-fps/1100-6417623/
Titanfall can also have more THINGS going on at one time during the multiplayer.
Titanfall (Xbox One)
~Mod Edit~
This post has been moderated.
-Smeags