FPS
From polycount
Frames Per Second
Frames Per Second. This means how many animation frames the computer displays each second. Also called frame-rate. The NTSC television standard used in the United States displays its frames at around 30 fps, whereas the PAL standard used in Europe displays at 25 fps, and a motion picture displays at 24 fps. See also rendering.
First Person Shooter
A standard abbreviation for the videogame genre "First Person Shooter".