Dec 8, 2021 · Industry Insights

Inside Fujitsu A64FX: Architecture that Drives Japan’s Fugaku Supercomputer

The article examines Fujitsu’s A64FX ARM‑compatible processor, detailing its 7 nm FinFET design, HBM2 memory, SVE vector extensions, and system‑on‑chip integration, while comparing its engineering philosophy and performance to IBM’s BlueGene/L and explaining how these choices enabled the Fugaku supercomputer to top the Top500 list.

ARM architectureBlueGene/LFugaku

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Inside Fujitsu A64FX: Architecture that Drives Japan’s Fugaku Supercomputer

Architects' Tech Alliance

Jun 23, 2020 · Fundamentals

Fugaku Supercomputer Tops TOP500 Rankings, Showcasing ARM Processor Power

On June 22, 2020, Japan's Fugaku supercomputer, built with Fujitsu's ARM‑based A64FX processors, claimed the top spot in all four TOP500 benchmarks, delivering 415.5 petaflops in Linpack and dramatically surpassing rivals while highlighting the growing impact of ARM architecture in high‑performance computing.

A64FXARMFugaku

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Fugaku Supercomputer Tops TOP500 Rankings, Showcasing ARM Processor Power