FPS may refer to any of the following:
1. Short for frames per second, FPS is a measurement of speed or performance of a game or computer system that is mostly based on the speed of the video card, CPU, and memory in a computer. Typically a user who has a higher FPS is capable of performing better and reacting faster. Often many games today have a command or keyboard shortcut key that displays the frames per second you are getting. There are also programs such as Fraps and other benchmarking programs that shows the frames per second you are capable of getting with the hardware and hardware settings you have. The picture shows a game showing an FPS of 60.0 or 60 frames per second.
2. FPS is also short for first-person shooter, a genre of video game. In an FPS, the player views the game in a first-person view. Game interaction largely involves moving, aiming, and shooting a gun. First-person shooter games first became popular with the release of Doom in 1993. As can be seen in the picture, the player has a handgun and is shooting a character in the game.