"This 55nm AMD chipset supports all of the same features as the earlier 780G plus more. Among these features are ATI Hybrid Graphics, PowerPlay, side-port memory, CrossFireX, and OverDrive. AMD 790GX motherboards can choose to support CrossFire through dual PCI Express x16 slots but with only PCI-E x8 bandwidth per slot. While not related to the graphics front, 790GX motherboards are also able to utilize AMD's newer SB780 Southbridge, which is a modest upgrade from the SB700."
