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More detailed presentations about the Monaka CPU: wccftech summary: https://wccftech.com/fujitsus-monaka-chip-3d-stacks-2nm-cpu-5nm-sram-dies-monaka-x-eyes-202

by jaen 16d ago

More detailed presentations about the Monaka CPU: wccftech summary: https://wccftech.com/fujitsus-monaka-chip-3d-stacks-2nm-cpu-5nm-sram-dies-monaka-x-eyes-2029-1-4nm-nvlink-fusion/ https://wccftech.com/fujitsus-monaka-chip-3d-stacks-2nm-cpu-... 2026: https://global.fujitsu/-/media/Project/Fujitsu/Fujitsu-HQ/technology/research/events/isc26/fujitsu-isc2026-fujitsu-monaka.pdf?rev=29a544077502430c9297c32c9584053e&hash=3765E844A36C765C7C85EA6917556B04 https://global.fujitsu/-/media/Project/Fujitsu/Fujitsu-HQ/te... 2023: https://global.fujitsu/-/media/Project/Fujitsu/Fujitsu-HQ/technology/research/events/sc23/next-arm-processor-fujitsu-monaka-and-its-technologies.pdf?rev=14b5d074842943da92c8feb406c1e50c&hash=59963ED9B26AAFA22FAAEFA636ACC296 https://global.fujitsu/-/media/Project/Fujitsu/Fujitsu-HQ/te... FugakuNEXT, the supercomputer it will be used in, also some details about the next-gen Monaka-X: https://global.fujitsu/-/media/Project/Fujitsu/Fujitsu-HQ/technology/research/events/sca-hpcasia2026/SCAsia26-fugakunext.pdf?rev=c773a429546140a3a79c91f4c52bf2ea&hash=1CABB2584E8A0DDBFCB9E17A80D9C457 https://global.fujitsu/-/media/Project/Fujitsu/Fujitsu-HQ/te... For a single CPU: 844 GB/s memory bandwidth (12 channels of DDR5 RDIMM, 8800MT/s). 4.3-6 TFLOPS. Basically comparable to a modern (although not top-end) GPU, so good for HPC & AI workloads. (though only 2 CPUs per node, with GPUs 4-8 is more common)

menaerus 15d ago
Benchmarks will be interesting to see but I doubt the cores alone will be able to reach beyond ~500GB/s of BW, and even if they match that figure it will be great.
boutell 16d ago
Thanks for clarifying why this makes sense for inference.
chao- 16d ago
For anyone not familiar with Fujitsu's CPUs, worth noting their overall long history with HPC, and more recently, ARM. FugakuNEXT is "NEXT" because the current Fugaku (#1 on TOP500 for a time, and still in the top 10) also used an ARM CPU from Fujitsu.
3abiton 15d ago
Man this looks amazing, more competition is always welcome! The issue for Ai inference is always firmware/software support. Up until recently, that rocm hardware became usable, let alone optimized. Nvidia had a big start, now everyone is trying to catch up

by jaen 16d ago

menaerus 15d ago

Benchmarks will be interesting to see but I doubt the cores alone will be able to reach beyond ~500GB/s of BW, and even if they match that figure it will be great.

boutell 16d ago

Thanks for clarifying why this makes sense for inference.

chao- 16d ago

For anyone not familiar with Fujitsu's CPUs, worth noting their overall long history with HPC, and more recently, ARM. FugakuNEXT is "NEXT" because the current Fugaku (#1 on TOP500 for a time, and still in the top 10) also used an ARM CPU from Fujitsu.

3abiton 15d ago

Man this looks amazing, more competition is always welcome! The issue for Ai inference is always firmware/software support. Up until recently, that rocm hardware became usable, let alone optimized. Nvidia had a big start, now everyone is trying to catch up