Quite sure -- and given that one game I've been playing lately (and the exception to the lack of shooters in my portfolio) is Selaco, so I ought to have noticed by now.

There's a very slight difference in smoothness when I'm rapidly waving a mouse cursor waving around on one screen versus the other, but it's hardly the night-and-day difference that going from 30fsp to 60fps was back in Ye Olden Days, and watching a small, fast-moving, high-contrast object doesn't make up the bulk of gameplay in anything I play these days.