Frame rate (expressed in frames per second or FPS) is typically the frequency (rate) at which consecutive images (frames) are captured or displayed. This definition applies to film and video camerascomputer animation, and motion capture systems. In these contexts, frame rate may be used interchangeably with frame frequency and refresh rate, which are expressed in hertz. Additionally, in the context of computer graphics performance, FPS is the rate at which a system, particularly a GPU, is able to generate frames, and refresh rate is the frequency at which a display shows completed frames.[1] In electronic camera specifications frame rate refers to the maximum possible rate frames could be captured, but in practice, other settings (such as exposure time) may reduce the actual frequency to a lower number than the frame rate.

The following video above provides a compares the recording frame rate captured by a CCTV camera. The goal is to compare the most popular frames per second (FPS) recording settings using in video surveillance systems. The following frame rates are compared 30 FPS vs 15 FPS vs 10 FPS vs 7.5 FPS vs 5 FPS vs 1 FPS.

Source: Everfocus/Wikipedia