AMD launches Instinct MI450X, reports MI455X inference gains

AMD has announced advancements to its Instinct MI400 Series GPU portfolio, introducing the new MI450X GPU and sharing measured inference results for the MI455X GPU on the AMD Helios rackscale solution. According to AMD Performance Labs testing from October 2026, the MI455X achieved up to 30 percent higher throughput than Nvidia Vera Rubin on DeepSeek-R1. The new MI450X offers 288 GB of HBM4 memory per GPU to give customers greater flexibility for their AI workloads and deployment needs. Open article →