PLAYSTATION 3 (PS3)40GB PS3 uses quieter, cooler chipsetKotaku - October 30, 2007
Submitted by pilias_simber (122)
at 9:15AM PST on October 30, 2007
Computer Base is reporting that the new 40GB PS3s will make use of the shrinkafied 65nm Cell processor.
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From August $640. Page 1, Page 2. There you can also see that the chips and motherboard are the biggest part.