What are officially considered acceptable FPS at what monitor resolution?

[Sven]

What I consider solid is 30 FPS. If you put a limiter on 30FPS and it doesn't drop below that on minimum settings on a minimum system. Otherwise it really isn't fun to play, the further you advance in fighter to fighter action, you really want the game to have fluent FPS, otherwise you can forget shooting form angles and turns.

My experience, maybe some people can live with 15-20 FPS, I can't.