How does HyperTransport technology compare to other bus technologies?
As compared to older address/data/control multi-drop, shared buses such as PCI, PCI-X or SysAD, HyperTransport offers a flexible, packet-based, daisy-chain architecture that provides vast amount of bandwidth combined with the lowest achievable latency.. As compared to new-generation, I/O technologies such as PCI Express, HyperTransport is processor native – i.e. embedded in the processor chip and therefore not burdened by the latency penalties imposed by the extra processor-to-I/O interface control logic that PCI Express requires. HyperTransport is native on several processor families marketed by a diverse breed of processor manufacturers, including AMD, Bay Microsystems, Broadcom, NetLogic Microsystems, Nvidia, Raza Microelectronics, PMC-Sierra, Tarari and targeting a wide range of applications including PCs, servers, networking, communication, media processing and embedded designs.
