Okay, so you need a $20 billion factory to put out 256-core behemoths that power servers with terabytes of RAM. But if you're GM, you don't need the latest Xeo

Okay, so you need a $20 billion factory to put out 256-core behemoths that power servers with terabytes of RAM. But if you're GM, you don't need the latest Xeon. You need a 100 MHz single-core microcontroller, that normally sells for $2 to a hobbyist ordering a single chip, but probably something like $0.50 if you're GM and you order a million. GM would probably happily pay $20 for that microcontroller if it's holding up a $40,000 truck. If those microcontrollers cost 0.1% of what a Xeon costs, shouldn't that mean, to a first order of magnitude, the factory that produces a 100 MHz microcontroller should cost 0.1% of what the factory costs to produce a Xeon? How slow / expensive would it be if you wanted to set up a factory to pump out microcontrollers for GM trucks instead of Xeons for Amazon servers?