PPC in both machines is the same design. http://www.amazon.co...e/dp/0806531010
the ppc but not the rest, microsoft asked ibm to make them a cpu,ibm used there experience and rushed one out lol
MS did just this last time. Back when 360 first came out most pc's were running a single core and some enthusiasts were running dual core. MS came out with a tricore cpu with two hardware threads per core. They paid extra for future technologym that wasn't yet available to consumers off the shelf.
Same with the gpu at the time. MS paid ati a boatload of money for the new technology of th