The IBM-built chip features three customized PowerPC computing engines that can each handle two simultaneous tasks at clock speeds greater than 3 gigahertz. It was customized for Microsoft in less than 24 months from the original contract.
"Working with IBM gave us the flexibility to design a processor to give game developers the kind of targeted power they need to make great games," said Todd Holmdahl, Microsoft vice president of Xbox hardware.
IBM also incorporated high-speed connection between the microprocessor and the Xbox’s graphics processor developed by ATI Technologies Inc. The graphics hardware can read directly from what’s stored on the primary processor’s onboard memory.
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