VR-Zone has taken a close look at the new SiS648 chipset that officially support AGP8X, DDR333, MuTIOL 1G and USB 2.0. Interestingly, SiS648 can also support DDR400 too that can further boost the performance and is paired up with the new SiS963 Southbridge. SiS648 was pit against the formidable Intel 850E w/ PC1066 RDRAM and other DDR333 chipsets like Intel 845G, VIA P4X333 and SiS645DX. SiS648 Performance Review