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Hot Chips 2026: IBM's first dual-ISA core natively executes ARM and z/Architecture in the same core; all cores run at 5.7 GHz base frequency — next-gen mainframe AI processor is built on 2nm node with 11 cores


Native AArch64 and z/Architecture support within the same core

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IBM’s next-gen mainframe chip is the first to run Arm and Z workloads on the same cores