This week, Ubisoft finally gave us a new release date for Watch Dogs, and with it a new trailer and gameplay footage. That teaser caused a lot of teeth around the internet to chatter as folks discussed whether how it looks now is a downgrade from how it looked when it was announced at E3 2012.
This video, by Jason Knothe, compares footage from the last two E3s and this new footage (beyond just that one gif people have been passing around), all of which is real-time but not rendered on the same platform. It's not a 1-to-1 comparison mostly — with night being compared with day and so forth — but it's the best we've got at the moment if you're into parsing graphical details.
But I'll just say this: open worlds are really tough on hardware, even the new consoles can't do what a decked-out PC can, etc.