If the frame rate is too low, the illusion of motion may be
impaired and can affect the user’s ability to interact with the game.
If the frame rate is too high, the frames may be updating faster
than the screen refresh rate (often 60 FPS).
In this case, some rendered frames are not displayed. Therefore,
most graphics cards can limit the frame rate to the screen refresh rate
A reasonable target is a frame rate
of 30 – 60 FPS. For example, Halo 3 is
locked to 30 FPS. Source: