DailyTech - HyperTransport 3.0 Ratified Today
The most apparent change for HT 3.0 is the bump in the data rate clock. HyperTransport 2.0 had a maximum clock of 1.4GHz; HT 3.0 increases that to 2.6GHz. This brings the total bandwidth available up to 20.8GBps. Additionally, HT 3.0 adds hot-plugging so devices can be inserted and removed from the HT layer on the fly. Power management and AC interconnect mode also played a large part in the newest standard -- HT 3.0 will now transmit up to one meter at the maximum specified clock speed with no signal loss. Effectively, HyperTransport can be used to connect from one machine to another in the correct conditions. DailyTech previously spoke to PathScale, a company focused on making high-speed InfiniBand interconnects. According to PathScale, AMD's HyperTransport interconnect provides greater overall bandwidth and scalability over anything else currently available.
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