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Re:TPU v4: An Optically Reconfigurable Supercomputer for Mac... by mgraczyk on Wednesday April 05, 2023 @03:28AM (#35450578)
It's a different chip
Re:TPU v4: An Optically Reconfigurable Supercomputer for Mac... by versteegen on Wednesday April 05, 2023 @04:34AM (#35451077)
Clearly; they're tiny and for embedded applications.

They even wrote "The products offered by Google are unrelated to the products offered under the CORAL trademarks" in the page footer.