Comment on Xbox 360 ArchitectureparentComments−torginus4yStill, nothing would've prevented IBM from using the Cell PPE as the basis for a PowerPC chip for the military, so that doesn't disprove the theory.−monocasa4yI know that the Xenon was being simultaneously taped out with the Cell PPE, so it doesn't derive from another cell derived core.The book "The Race for a New Game Machine" goes over the timing pretty well.
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Still, nothing would've prevented IBM from using the Cell PPE as the basis for a PowerPC chip for the military, so that doesn't disprove the theory.
I know that the Xenon was being simultaneously taped out with the Cell PPE, so it doesn't derive from another cell derived core.
The book "The Race for a New Game Machine" goes over the timing pretty well.