>My employer is moving workloads to ARM on AWS as it’s much better for price/perf

It's a fool's errand to try to reason about Amazon's pricing. We don't have figures about how much a Graviton costs to build or to run, but we do know AWS has staggeringly high margins across the board. They have huge headroom to make price cuts if they want their homegrown solution to win.

And perhaps it is better! I have no doubt it's a good CPU. But we can't infer that from pricing.