Frame rate (also known as frame frequency) is the frequency (rate) at which an imaging device produces unique consecutive images called frames. Frame rate is most often expressed in frames per second (FPS) and is also expressed in progressive scan monitors as hertz (Hz).

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Why do video game framerates need to be so much higher than TV and cinema framerates?

It seems that video games need to have something like 60 frames per second in order to be smooth and realistic. But TV and films only have about 24 or 25. Why the difference?