LONDON Three emerging chip-to-chip interconnect standards HyperTransport, PCI Express, and RapidIO are being included in integrated circuits and systems at an increasing rate and their use will grow over the next several years according to market research company In-Stat.
PCI Express is set to experience the highest growth of all three interconnects rising from 8.7 million systems in 2004 to 283 million in 2009, In-Stat predicted. Despite shrinking use in consumer applications, In-Stat is forecasting a 28 percent compound annual growth rate for the use of HyperTransport fueled by success in computing and routing applications. RapidIO is clearly a distant third in I/O wins, but has found a position in telecommunications, In-Stat said.
At the same time limitations to the continued use of the three standards can be seen. Each interconnect system has roadmaps to higher speeds and bandwidth but all face challenges overcoming jitter using current printed circuit board technology. These challenges may eventually force a transition to optical interfaces, In-Stat argued.
“RapidIO has found a home interconnecting DSPs, HyperTransport has become the front-side bus and processor-to-processor interface for all AMD processors, and PCI Express is the new standard for board-level peripheral interconnects in all computing applications,” said Chris Kissel, In-Stat analyst in a statement.