On Jul 22, Motorola released the PowerPC MPC8560--the latest version of its e500 processor, a communications chips which also bears the name G5. Note, this is not the same class of processor used in Macintosh computers.
The chip, however does incorporate a DDR SDRAM memory controller as well as a RapidIO interconnect.
RapidIO is a high-performance "interconnect" technology that is in competition with Hypertransport. Of interest, Apple is a member of the Hypertransport consortium, whose technology is also used in NForce2
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