Synopsys extends Arm partnership

Chip designers do not manufacture processors; they sell the software, interface blocks and test systems used to build them. On March 24, 2026, Synopsys said Arm had extended their partnership around Arm’s new AGI CPU for data-center chips. (synopsys.com) Synopsys said the deal covers electronic design automation software, interface intellectual property and hardware-assisted verification, the machines used to test complex chips before production. Arm said the AGI CPU is its first production silicon product for cloud and data-center infrastructure. (synopsys.com) (arm.com) Arm said the processor targets “agentic AI infrastructure” and was developed with Meta as a lead partner, with other customers and original design manufacturers lined up for production. Arm also said the chip is designed to deliver more than 2x performance per rack versus x86 platforms. (arm.com) The immediate change is that Arm’s server CPU push is moving from licensing core designs to shipping a processor of its own. Arm said the AGI CPU is based on Neoverse CSS V3, the same server platform it already sells to partners building custom chips. (arm.com 1) (arm.com 2) That puts Synopsys in the middle of a larger race to supply the plumbing for artificial-intelligence data centers. Synopsys said its tools will support design, analysis, implementation and system-level validation for “data center-class requirements” and lower compute cost during development. (synopsys.com) The company’s role is not limited to software code for drawing chip layouts. Synopsys said it is also supplying silicon-proven interface IP for high-performance subsystems and emulation and prototyping systems for bring-up and workload testing. (synopsys.com) Arm framed the broader market around hyperscalers that already run Arm-based server chips, including Amazon Web Services Graviton, Google Axion and Microsoft Azure Cobalt. In a separate ecosystem page, Arm also listed OpenAI as a future user of the AGI CPU’s orchestration layer for large-scale AI workloads. (arm.com 1) (arm.com 2) The Synopsys-Arm relationship is not new. Arm’s partner page says the companies have worked together for three decades, and Arm announced an earlier expansion of the collaboration in September 2014 around Armv8-A, graphics, system IP and Synopsys verification tools. (arm.com 1) (arm.com 2) For cloud customers, the thread running through this announcement is control over the full stack: Arm is moving closer to finished server silicon, and Synopsys is selling the design and test layer underneath it. Both companies are now tying that stack to the next build-out of AI data centers. (arm.com) (synopsys.com)