What is the latest version of the HyperTransport specification?
The latest HyperTransport technology specification is HyperTransport 3.0, which was released on April 24, 2006. HyperTransport 3.0 boosts the maximum clock speed of HyperTransport links to 2.6 GHz, which thanks to HyperTransport’s double data rate (DDR) capability delivers up to 5.2 GigaTransfers/second per bit and yields the following aggregate performance (2 unidirectional HyperTransport links): 8-bit Links 16-Bit Links 32-bit Links 10.4 GB/s 20.8 GB/s 41.6 GB/s In addition to increasing maximum performance by 86 percent compared to HyperTransport 2.0, HyperTransport 3.0 adds powerful architectural and operational features, such as: • AC mode of operation (capacitive coupling) for longer haul interconnects (full clock speed up to 1m), typical of backplane and chassis-to-chassis applications • Enhanced DC operational mode • DC/AC auto-sensing and auto-configuration • Link Splitting (converting a 16-bit link into two independent 8-bit links) • Hot plugging • Dynamic power management (r
