Bad part is it's hard to demonstrate because any screenshots have the selected DSR resolution i.e. 2560x1440 and not the display resolution anymore. Try this in 1920x1080:
SpoilerShow
It seems that the Steam screenshot tool does not "catch" the FXAA part. In the game the jaggies are gone while in the screenshot they are there again.
EDIT 2
Make sure that you want to use of DSR. Otherwise updating to the new nvidia driver is not worth it because i found it to be about 5% slower then it's predecessor.