The SiS761GX, a HyperTransport™ to PCIe / MuTIOL® Bridge with a Mirage™ 1 graphic engine, integrates a high performance HyperTransport™ interface for the AMD Athlon™ 64 X2 Dual-Core processor and Athlon™ 64 FX processor family, a PCIe interface, a Mirage™ 1 graphic engine, and SiS MuTIOL® Technology, which connects with the SiS966 MuTIOL® Media I/O.

The HyperTransport™ interface of the SiS761GX features HyperTransport™ compliant bus driver technology to support AMD Athlon™ 64 X2 / Athlon™ 64 FX processors up to 2000MT/s data rate.

PCI Express is a new standard of I/O interconnect. It has several advantages over legacy PCI. Furthermore, it is PCI compatible in software. SiS761GX integrates a x16 Host-to-PCI Express bridge that is a compliant with PCI Express Spec. 1.0a. It also has lane reversal capability to provide maximum flexibility.

The integrated Mirage™ 1 graphic engine features a 3D, a 2D Graphics engine, a video accelerator, a MPEG I/II motion compensation decoder, and a High Definition Vedio (combined with PCIe port) to support TV-out & digital flat panels. To maintain a cost-effective PC system, SiS761GX adopts the UMA, and eliminates the need and thus the cost of the frame buffer memory by organizing the frame buffer in the system memory from programming the system BIOS.