30 vs 60 fps - can you really see the difference?

[Hedra42]

I find it difficult to spot the difference when comparing side-by-side like that, although not impossible.

But I notice it a great deal if I've been playing something in 60 FPS and then go to 30 FPS. It's very evident in MK8 - go from 1 or 2 player (60 FPS) to 4 player (30 FPS) and the difference screams at you.