AMD MI355X beats NVIDIA B200 by 2.25x at scale with ~40% lower cost per GPU hour: Signal65
ryanshrout · x · 2026-09-23
New Signal65 research compares AMD's MI355X against NVIDIA's B200 across performance, cost, and modeled business outcomes. As context length and concurrency scale up, the MI355X's edge grows to 2.25x, with roughly 40% lower cost per GPU hour. AMD's Anush Elangovan and Andrew Dieckmann joined to break down the variables behind the gap.
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