Relative perfomance. All content posted on TechnologyGuide is granted to TechnologyGuide with electronic publishing rights in perpetuity, as all content posted on this site becomes a part of the community. JanJohansson August 12, at am. Graphics Media Accelerator (GMA) X - Technical City The X is essentially the X with a slightly slower clock and some power saving features to make it more mobile friendly. The X3x00 is better than the G chipset by leaps and bounds-- at least theoretically-- ...