Carmack: Rage runs faster on Xbox 360

[Slimebeast]

Arekhon said:

Obviously almost noone noticed the second half of what Carmack said:

"He is, however, confident that the PS3 version will match that of all other supported platforms: “Everything is designed as a 60 hertz game. We expect this to be 60 hertz on every supported platform.”

“The work remaining is getting it locked so there’s never a dropped frame or a tear, but we’re confident that we’re going to get that.”"

http://www.edge-online.com/news/carmack-ps3-performance-lags-behind-360

So, we'll have to see what the game will look like when it's done, not what it looks like in it's current development state.

Why is it so important to get the framerate 'locked'? What does it matter if it drops from 60 fps to say 50 fps from time to time?