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importantSYS.SOURCE: Chips and Cheese• 2026-07-24T06:59:07Z

AMD Instinct MI455X: Next-Gen AI Accelerator with CDNA5 Architecture

#ai hardware#gpu architecture#data center

AMD's Instinct MI455X introduces CDNA5 architecture with 256 WGPs, 432GB HBM4 memory, and 72-GPU rack-scale capabilities for AI workloads. It features enhanced SIMD design, multicast memory access, and 260TB/s scale-up bandwidth via Helios rackscale platform.

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