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Arm Announces Most Efficient Processors Cores for Phones to Date

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May 29, 2024, 10:00 AM by Rich Brome

Arm has revealed a new, more efficient set of processor core designs intended for the chips that power smartphones and similar devices. This year's release is more tightly optimized for Android than ever, with new Android software libraries that accelerate AI tasks running on Arm CPUs. This new "Kleidi" software is optimized for computer vision as well as general AI, including generative AI. Kleidi works not only on current Arm CPUs, but older designs and future ones as well. The new hardware and software together is a solution that Arm calls "CSS (Compute SubSystems) for Client". The hardware is Armv9.2, a collection of prime, big, and little CPU cores that chip makers can mix as they wish, plus GPU for graphics. The new Cortex-X925 prime core delivers 36% better single-threaded performance and 41% better AI performance (time to first token, compared to Cortex-X4). The new Cortex-A725 "big" core offers 35% better "performance efficiency" compared to last year's A720. The new Cortex-A725 "little" core offers 15% better power efficiency compared. The new Immortalis-G925 GPU has 37% better general performance and 52% better ray tracing performance, compared to last year's G720. All of these designs are optimized for the latest 3nm manufacturing processes (both FinFET and GAA). For the first time, Arm is also offering optimized 3nm chip layouts using these cores, potentially accelerating time to market. Arm expects chips using these designs to reach the market by the end of this year.

source: Arm

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