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IBM unveils dual-ISA core for mainframes, running ARM and z/Architecture natively

By PulseAugur Editorial · [1 sources] ·

IBM has unveiled its first dual-Instruction Set Architecture (ISA) core, capable of natively executing both ARM and z/Architecture instructions within the same core. This innovation, developed in collaboration with Arm and built on a 2nm process, aims to bridge the gap between traditional mainframe reliability and the vast software ecosystem of ARM, particularly for AI workloads. The new processor, expected in z18 mainframes, features 11 cores running at 5.7 GHz and includes enhancements for AI acceleration and memory. AI

IMPACT This dual-ISA core could streamline AI development and deployment on mainframes by allowing native execution of ARM-based AI software.

RANK_REASON Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=1 ai=1.0]

Read on Tom's Hardware →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

IBM unveils dual-ISA core for mainframes, running ARM and z/Architecture natively

COVERAGE [1]

  1. Tom's Hardware TIER_1 English(EN) · Jake Roach ·

    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

    IBM is vastly expanding softwarte support on its mainframes with its first dual-ISA CPU core that natively supports z/Architecture and ARM instructions.

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