The High-Performance Arm V3 Platform Performance-Optimized and Validated by Arm

Arm Neoverse CSS V3 is the fastest path to building high-performance, TCO-optimized cloud CPUs or custom AI accelerators on Arm. It delivers a high-performance, highly customizable Neoverse V3 subsystem, helping to reduce the time, cost, and risks of building high-performance custom silicon, and letting designers focus on product differentiation.

Features and Benefits

The Fastest Path to Arm Confidential Computing VMs in the Cloud

Leveraging CSS V3 is the fastest way to deliver Neoverse V3 to market and supports the Arm Confidential Computing Architecture.

An Ideal Platform for Building AI Accelerators

CSS V3 combines technical capabilities, such as large, fast memory, a high-performance CPU, and high-speed die-to-die links, with the time-to-market advantage of the CSS engagement model.

A Pathway to Arm Chiplets

Neoverse CSS V3 is the first product built in conformance with the Arm Chiplet Architecture (CSA) specification. With CSS V3, partners can kick start an interoperable Arm chiplet ecosystem.

Arm Neoverse CSS V3 Specification

Per-Die Specifications: 

Neoverse CSS V3 per-subsystem specifications1:

  • Up to 64-cores of Arm Neoverse V3
  • Up to 12-channels (40b) of DDR5/LPDDR5 memory
  • Up to 64-lanes of PCIe Gen5 or CXL I/O
  • High-speed die-to-die links supporting UCIe 1.1 or Custom PHYs
  • Built on Arm Neoverse CMN S3, MMU S3, and NOC S3 system IP

Neoverse CSS products are delivered as an integrated RTL that is configurable by the licensee.


1. CSS V3 can be flexibly configured for single or multiple die per socket, dual-socket SMP, or for reduced compute, memory, or I/O specifications.

Use Cases

Where Innovation and Ideas Come to Life

High Performance Computing (HPC)

HPC researchers are exploring the scale-out performance of Neoverse architectures on computational fluid dynamics, medical research, oil & gas exploration and other computationally demanding workloads.

Cloud Computing

More customers are shifting their workloads in Computational Fluid Dynamics, Genomics, Oil & Gas, and EDA to the cloud. Arm Neoverse offers excellent performance throughput and value.

Artificial Intelligence

Neoverse V-Series are the best Arm cores for accelerating AI/ML-assisted workloads, helping keep specialized computing resources fed quickly with data.

Explore Related Products

Neoverse V3

Arm Neoverse V3 is the next-generation, TCO-optimized, confidential computing-enabled, high-performance CPU for the cloud, HPC, and AI.


CMN S3 is Arm’s latest high-performance mesh interconnect, supporting the latest Neoverse CPUs, memory and I/O technologies, and die-to-die links for building next-generation infrastructure solutions.

Architecture and Technologies

A Foundation of Silicon Success