According to S3 these chips should deliver performance similar to ATI's X600Pro.
The GammaChrome will feature a built-in high-speed interconnect (HIS) bridge chip for PCIe connectivity, according to Liu. S3 is also cooperating with Rambus to enhance the stability of the data transmission.Source: DigiTimes
However, Liu said that AGP8X graphics chips will still be the mainstream products for S3 in the fourth quarter. In addition, S3 will start marketing its OmniChrome chip, a member of its DeltaChrome S4 lineup, in October.