Fujitsu announces MONAKA 144‑core CPU for sovereign AI infrastructure
Fujitsu has formally unveiled its MONAKA CPU, a 144‑core ARMv9 processor built on a 2nm 3D‑stacked process with a 5nm cache and I/O layer. The chip can run at a maximum 3.8 GHz and supports memory speeds up to 8800 MT/s, PCIe Gen6, and dedicated matrix‑operation instructions that claim twice the AI inference throughput of competing CPUs.
Key points
- Fujitsu's MONAKA CPU uses 2nm 3D‑stacked process, 144 ARMv9 cores, up to 3.8 GHz.
- Supports 8800 MT/s memory, PCIe Gen6, and hardware matrix‑operation acceleration for AI inference.
- Ships in 1U/2U servers starting November, with broader European availability in 2027.
The processor will be offered in 1U air‑cooled and liquid‑cooled server configurations, the latter reaching 2.9 GHz. Both 1U and 2U rackmount servers house the 144 cores at 2.1 GHz (air‑cooled) and include twelve RDIMM slots per socket. Fujitsu positions MONAKA as a solution for sovereign AI infrastructure, emphasizing high performance, power efficiency, and security for deployments where power and cooling are constrained. Availability starts in November 2026, with broader European rollout slated for 2027.
The story so far
2 episodes →- Fujitsu announces MONAKA 144‑core CPU for sovereign AI infrastructurethis story
Fujitsu formally announces their MONAKA 144 core CPU
phoronix.com · 14 September 2026Fujitsu Formally Announces Their MONAKA 144 Core CPU
MONAKA CPU since some slides about this Arm-based server processor first appeared and they upstreamed compiler support in GCC 15. This week Fujitsu formally announced the MONAKA CPU and with availability beginning in November.
The Fujitsu MONAKA CPU and Fujitsu MONAKA server are designed for sovereign AI infrastructure. Fujitsu describes the new hardware as having "world-class AI inference performance" and the CPU relies on 2nm 3D-stacked technology.
Fujitsu's new 2nm CPU features a maximum operating frequency of 3.8GHz and supports memory speeds up to 8800MT/s. In this week's press release the MONAKA CPU is described as:
"FUJITSU-MONAKA CPU: Achieving High Performance, High Power Efficiency, and High Security
The 1U air-cooled Fujitsu MONAKA rackmount server will feature 144 cores at 2.1GHz or if going for liquid cooling will be at 2.9GHz. The 2U rackmountable air-cooled server also runs its 144 ARMv9 cores at 2.1GHz. There is twelve RDIMMs per socket. PCIe Gen6 is supported with MONAKA.
Availability will begin in November and with greater available in Europe in 2027. We'll see if we end up getting (remote) access to MONAKA in due course as should be interesting for performance benchmarking.
The Fujitsu MONAKA CPU and Fujitsu MONAKA server are designed for sovereign AI infrastructure. Fujitsu describes the new hardware as having "world-class AI inference performance" and the CPU relies on 2nm 3D-stacked technology.
Fujitsu's new 2nm CPU features a maximum operating frequency of 3.8GHz and supports memory speeds up to 8800MT/s. In this week's press release the MONAKA CPU is described as:
"FUJITSU-MONAKA CPU: Achieving High Performance, High Power Efficiency, and High Security
FUJITSU-MONAKA utilizes a 3D-stacked architecture with a state-of-the-art 2nm process for the core and a 5nm process for the cache and I/O sections. By combining optimal processes for each function, it enhances cost efficiency and achieves high power efficiency and performance through Fujitsu's unique ultra-low voltage operation technology. It delivers world-class computational performance and data supply capabilities with a maximum operating frequency of 3.8GHz and memory transfer speed of 8800MT/s. The CPU provides hardware acceleration for matrix operations, which are central to AI inference, using dedicated instructions. Combined with SVE2 vector operations and software optimization, it achieves twice the throughput for AI inference compared to other CPUs. This enables practical AI inference performance from the CPU alone, offering the flexibility to deploy at the necessary scale even in locations with power and cooling constraints."
The 1U air-cooled Fujitsu MONAKA rackmount server will feature 144 cores at 2.1GHz or if going for liquid cooling will be at 2.9GHz. The 2U rackmountable air-cooled server also runs its 144 ARMv9 cores at 2.1GHz. There is twelve RDIMMs per socket. PCIe Gen6 is supported with MONAKA.
Availability will begin in November and with greater available in Europe in 2027. We'll see if we end up getting (remote) access to MONAKA in due course as should be interesting for performance benchmarking.
This text was published by phoronix.com. It is reproduced here with attribution so you can read it in full; the rights remain with the publisher. Read it at the source ↗
Coverage and discussion
1source- Reddit discussionreddit.com
The headline, key points and digest above were generated by Digest AI's editorial model from the linked sources. Automated summaries can contain errors: the sources are the record. Spotted a mistake? Tell us.
More in Hardware & Compute
All →- Huawei Announces New AI Chips to Compete with Nvidia · 4 src
- Chip Equipment Stocks Fall Amid AI Pacing Concerns · 1 src
- Nvidia Flags Severe Memory Shortage With $279 Billion Supply Commitments · 8 src
- Apple plans 2029 AI server launch using M8 Ultra and Nvidia NVLink tech · 6 src
- CoreWeave shares rise after deploying first Nvidia Vera Rubin NVL72 cluster · 3 src
Comments
via GitHub Discussions