ATI's Radeon Xpress 200M and Nvidia's GeForce Go 6600 are the latest proposals of the graphics giants for portable cutting-edge multimedia functionality.

ATI's Radeon Xpress 200MT will allow notebooks to work with AMD's mobile Sempron and Mobile Athlon 64 processors, as well as the forthcoming AMD Turion low-power chip line for lightweight notebooks, ATI said in a statement.

Sharp's Mebius PCXG-70H and Mebius PCXG-50H media center notebook PCs are among the first to incorporate the Radeon Xpress 200M. However, several other companies, including Acer, Gateway and Hewlett-Packard, are developing notebooks around it, as well, ATI said.

On the other hand, the Nvidia GeForce Go 6600 GPU is available immediately from industry-leading OEMs and ODMs including Acer, Asus, Gericom, Medion, Toshiba, and several other notebook suppliers worldwide.

The latest generation of multimedia notebooks will feature the GeForce Go 6600 GPU and the newest mobile technology from Intel(R). The GeForce Go 6600 is a true next-generation GPU created specifically to leverage the latest Intel Centrino(TM) mobile platform (codenamed Sonoma) and takes advantage of the new, improved PCI Express architecture.