Well it's more of a term dreamt up to suggest something technical
"The Super Nintendo's CPU is clocked in at 3.58 MHZ. Meanwhile the Sega Genesis / Mega drive's CPU is clocked at 7.67 MHZ. That is more then twice as fast as the one in the Super Nintendo. Because of that the Genesis games tended to play and scroll a bit smoother.
The Sega Genesis / Mega drive was capable of generating the next frame of the world ahead of where the character was, that is what makes sonic run so fast. The SNES certainly had a leg up on sound and graphics but the CPU in the Genesis was faster, and that is a fact"
http://screwattack.com/node/7526