On my 980 I can lower a few things to high (and not use the "advanced graphics" extra distance stuff) and get pretty consistent 60fps at 1080p 4x MSAA.
But man, even at 4x MSAA this game is so freaking jaggy. Like I'd rather use 2x MSAA and put stuff to very high, but every shimmers from the cars to the streets to the poles to the power lines. Just creates a real offputting visual effect.
FXAA/TXAA sorta help but they make everything blurry so it's not worth it. 8x MSAA seems like the bare minimum you need to get rid of the jaggy/shimmering in motion, but yeah that's way too expensive for any single card.
It's fine, I'll live with a shimmery game at 60fps; looks and runs nice otherwise, but yeah something about how the world is built, engine is made makes everything ultra jaggy at 1080p.