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Comment by CalChris

Graviton isn't Arm IP. It's AWS ne Amazon IP. Amazon is an Arm architecture licensee. That's important because ...

  Arm capitalization:    $  31.6B
  Intel capitalization:  $ 272.4B
  Amazon capitalization: $1240.0B

Amazon can throw an insane amount of money at a problem when the want to.

Edit to add: a good source for how much the Arm IP Graviton2 uses which is more than I thought:

The DDR4-3200 memory controllers are probably licensed IP.

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