You can't really compare Intel GMA series graphics adapter with those from Nvidia and ATi. The Intel VGA adapters was designed with low power consumption in mind. That is why it is integrated with most laptops in the market today. If you want to compare graphical raw power, no doubt Nvidia/ATi will pawn Intel. However, if you were to compare energy efficiency/low power consumption, Intel's GMA adapter pawns Nvidia/ATi.