Yes,
"Better graphics" is the correct word, problem is going 1080p doesn't necessarily guarantee that. All it's really doing is spending a ton of resources to get you smoother edges, which could also be resolved by using a custom antialiasing technique that is less resource intensive, like what they're doing with Assassins Creed Black Flag.
Here's an example of how you can get better graphics with lower resolution. The 2 images below are likely taking up around the same amount of resources, one is at 1080p with less, the other at 720p with more going on...
Which do you prefer? which has the better "Graphics"