AMD said on Nov. 12 that the Instinct MI450X is a new Helios GPU with 288 GB of HBM4 and the same core compute, memory bandwidth, and scale-up and scale-out links the company attributes to the MI455X. The product page lists CDNA 5, 23.3 TB/s of memory bandwidth, and direct liquid cooling, and does not state a shipment. In the same post, AMD said its own October test of an MI455X reached 21,333 tokens per second per GPU on DeepSeek-R1, which AMD calculates as up to 30 percent above a published Nvidia Vera Rubin result.
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