Good-bye PCI, hello Arapahoe: 3G input/output bus
What is it? A faster data pipe.
What's cool? Today's multigigahertz chips demand a constant stream of data, and the aging PCI and AGP bus standards won't be fast enough at shuttling data between your PC's components. That's why Intel is developing a third-generation input/output interconnect specification, code-named Arapahoe, that's up to ten times quicker than today's fast PCI-X bus. PCI-X moves data in parallel along 64 wires, reaching a top speed of about 1GB per second. Arapahoe can employ from 1 to 32 lanes; each lane consists of a pair of wires and can shuffle more than 200MB of data per second between the CPU and add-in cards or integrated parts. Arapahoe can also prioritize data, so that, for example, real-time streaming data is processed faster.
When's it coming? Early 2004. What's the catch? PC makers will have to support both standards as systems make the transition to Arapahoe, which may increase PC costs.
Impact meter: 9
About time the big boys started workign on a new bus. The PCI bus is old, tired and just plain worn out. A 33MHz bus and a 2GHz processor talk real fast......