Watch Dogs is out on both current-gen and last-gen systems. While all versions of the game play the same, each version looks slightly different.
IGN brings us this graphical throw-down, where we can see how each version of the game fares against one another. Overall, as you might expect, the current generation looks the best -- but the game still looks great on the PS3 and 360.
You'll want to skip to around the 2:20 mark if you want to see the graphical comparisons for straight up gameplay. It's also worth keeping in mind that the PC graphics shown here are on ultra, which can differ from what the game looks like on low. But while the game may look the best on PC, players have experienced issues on that platform.
None of these, of course, look quite like what we were shown in 2012, as this clip by VideoGamerTV shows:
But, hey, personally, I don't really have a problem with that. I just mention it since I know it matters to some people; some of the harsh reactions we've seen online seem based on expectations -- which were set by things like this demo -- not being met.
In any case, what platform will you be playing Watch Dogs on?