{"slug": "arm-expands-ai-chip-push-with-neoverse-css-n4-and-agi-cpu", "title": "Arm expands AI chip push with Neoverse CSS N4 and AGI CPU", "summary": "Arm introduced the Neoverse CSS N4, its most configurable Compute Subsystem to date, supporting up to 128 processor cores on a die plus LPDDR6 memory and PCIe Gen 7, and said the platform delivers up to twice the performance, 1.25 times the performance per watt, and 1.75 times the memory bandwidth of the previous-generation Neoverse CSS N3. Arm also highlighted adoption of its Arm AGI CPU, a 300-watt data center processor with up to 136 Neoverse V3 cores developed with Meta, which Arm says is supported by OpenAI, Meta, Cloudflare, Oracle, SAP, Lenovo, Supermicro, and Verda. Google Cloud, Microsoft Azure, and Nvidia are running or designing agentic AI workloads on Arm-based infrastructure, including Axion, Cobalt 200, and the Vera platform.", "body_md": "Arm is expanding its push into AI data center infrastructure, introducing its most configurable Neoverse Compute Subsystem to date while highlighting growing industry adoption of its Arm AGI CPU for agentic AI workloads.\n\nThe new Neoverse CSS N4 is designed to give customers a faster path from processor design to production silicon, while the Arm AGI CPU provides a production-ready processor aimed at workloads that require highly responsive CPU performance, according to the company.\n\nThe announcement reflects Arm’s larger effort to position its architecture as a foundation for the next phase of AI infrastructure, where workloads move beyond conventional model inference and into autonomous agentic systems.\n\nThe Neoverse CSS N4 is its most configurable Compute Subsystem yet, allowing customers to build customized silicon for applications ranging from AI compute platforms to data-processing units, networking and other specialized infrastructure.\n\nCSS N4 can incorporate up to 128 processor cores on a die and supports LPDDR6 memory and PCIe Gen 7 connectivity. Arm claims the platform can deliver up to twice the performance, 1.25 times the performance per watt, and 1.75 times the memory bandwidth of the previous generation Neoverse CSS N3.\n\nArm has become increasingly aggressive in pursuing the data center business lately. In March, the company introduced the [Arm AGI CPU](https://www.networkworld.com/article/4150759/arm-shifts-course-moves-into-silicon-business.html), its first Arm-designed data center processor. The chip is based on Neoverse V3 cores and was developed in partnership with Meta.\n\nArm claimed that the processor could provide more than twice the performance per rack of comparable x86 systems, although that figure is based on Arm’s internal estimates and depends on system configuration and workloads.\n\nThe AGI CPU contains up to 136 Neoverse V3 cores and has a 300 watt TDP. Arm’s reference design uses two processors in a 1U, two-node configuration, providing 272 cores per blade. A fully populated air-cooled rack can reach 8,160 cores, according to Arm, while a liquid-cooled configuration can exceed 45,000 cores per rack.\n\nArm said the AGI CPU is gaining support from companies across the AI and cloud ecosystem, including OpenAI, Meta, Cloudflare, Oracle, SAP, Lenovo, Supermicro, and Verda.\n\nThe company also noted the broader adoption of Arm-based processors for agentic AI. Google Cloud is running agent sandboxes on its Arm-based Axion infrastructure, Microsoft Azure is using its Cobalt 200 processor for sandbox tool execution, and Nvidia’s Vera platform is also designed around agentic workloads.", "url": "https://wpnews.pro/news/arm-expands-ai-chip-push-with-neoverse-css-n4-and-agi-cpu", "canonical_source": "https://www.networkworld.com/article/4221791/arm-expands-ai-chip-push-with-neoverse-css-n4-and-agi-cpu.html", "published_at": "2026-09-14 16:38:34+00:00", "updated_at": "2026-09-14 16:57:49.349231+00:00", "lang": "en", "topics": ["ai-chips", "ai-infrastructure", "ai-agents", "ai-products"], "entities": ["Arm", "Neoverse CSS N4", "Arm AGI CPU", "Neoverse CSS N3", "Meta", "OpenAI", "Google Cloud", "Microsoft Azure"], "alternates": {"html": "https://wpnews.pro/news/arm-expands-ai-chip-push-with-neoverse-css-n4-and-agi-cpu", "markdown": "https://wpnews.pro/news/arm-expands-ai-chip-push-with-neoverse-css-n4-and-agi-cpu.md", "text": "https://wpnews.pro/news/arm-expands-ai-chip-push-with-neoverse-css-n4-and-agi-cpu.txt", "jsonld": "https://wpnews.pro/news/arm-expands-ai-chip-push-with-neoverse-css-n4-and-agi-cpu.jsonld"}}