AWS unveils core-packed Graviton4, refreshed Trainium chips
Briefly

Graviton4 marks the fourth-generation we've delivered in just five years and is the most powerful and energy efficient chip we have ever built for a broad range of workloads.
Graviton4 also gains support for encrypted traffic for all of its physical hardware interfaces.
We do know that Graviton3 supported a novel three-socket configuration backed by a single DDR4 memory controller.
Read at Theregister
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