 While frame rates above 60 FPS (standard NTSC framerate) become increasingly difficult to distinguish with the human eye, enthusiast PCs with a multi-video card setup often boast framerates in excess of 100 FPS.To maintain a challenge, the standard for comparison is constantly refreshed with new games and higher detail settings.Overclocking is used by enthusiasts to achieve component or system performance that exceeds the manufacturer's officially stated specification.