Alright so the game is actually technically 1920X1080. Just 1080i.

But only because it merges data from two rendered frames to make one output frame. It's rendering in 960X1080, and then appears to be filling in the other 960X1080 with info from the previous frame. It appears to be a temporal AA technique in a way. Looks pretty bad in this screenshot.
TLDR: it's complicated.







