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Comment by Youden

20 hours ago

Where are the CPUs fabbed? They make a big deal about "sovereign" but is the CPU actually made in Japan, or do they rely on TSMC?

Also odd how big an emphasis they put on AI inference when they don't build the GPU?

15 comments

Youden

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adrian_b  17 hours ago

Their CPUs are faster at inference than many GPUs. These are server CPUs with 144 cores and wide memory interface.

Fujitsu has added some ISA extensions for AI inference to the standard Arm ISA, e.g. instructions for inference with FP8.

Even their previous CPU generation was for some time the champion in energy efficiency, with better performance per watt than the NVIDIA GPUs, until a newer generation of NVIDIA GPUs has leapfrogged them.

There are good chances that this new Fujitsu CPU might be again for some time the CPU with the best energy efficiency, but it remains to be seen how it compares with the recent GPUs.

nicce  20 hours ago

> put on AI inference when they don't build the GPU?

GPU in AI world is essentially a set of specific matrix calculations that this CPU supports on hardware-level. Thought memory speed seems low.

Max-q  20 hours ago

The article says that it’s manufactured in Japan.

  • ranger_danger  20 hours ago

    where exactly does it say that? I don't consider "designed and developed in Japan" to be the same as manufactured there

    • bradyd  20 hours ago

      At the very top of the article: "Achieving world-class AI inference performance through Japan-developed 2nm 3D-stacked CPU and server integrated, developed, and manufactured in Japan"

      7 replies →