[citation][nom]bildo123[/nom]Isn't v-sync/"fps caps" the same thing? Also, from what I've seen v-sync is quite nice since it gets rid of that nasty tearing effect. And no, v-sync doesn't bomb out your FPS to a dramatic effect. Though smooth scrolling, from what I've seen, can simply be turned off. It's games like AvP 2010 that pretty much play the game for you (well you have to spam E) yet don't give you the choice that are terrible.[/citation]
vsync isn't the same thing as a fps cap!
What it does is sync the frames to the refresh rate of the monitor. It works really well to conserve energy when you're using older software on new and powerful hardware. But if you've got 70fps in a game, and enable vsync on a 60hz monitor, you're at risk of seeing tearing or a stutter effect since you don't have the excess power to nessecarily allign each frame right.
Now a cap on the other hand is usually implemented by the game's engine. The actual cap depends on how a game works - how it counts time etc. In diablo 2 for instance, the game's internal cap was 25fps - that's because the engine calculates 25 'ticks' per second, and animations were built specificly for that. Thus running 200fps wouldn't make the game any more fluid. That's a cap.