Accelerate Edge AI Innovation

AI data-processing workloads at the edge are already transforming use cases and user experiences. The third-generation Ethos NPU helps meet the needs of future edge AI use cases.


The Ethos-U85 offers support for transformer-based models at the edge, the foundation for newer language and vision models, scales from 128 to 2048 MAC units, and is 20% more energy efficient than Arm Ethos-U55 and Arm Ethos-U65, enabling higher performance edge AI use cases in a sustainable way. Offering the same toolchain as previous Ethos-U generations, partners can benefit from seamless migration and leverage investments in Arm-based machine learning (ML) tools.

Features and Benefits

Sustainable Innovation

20% more energy efficient than Ethos-U55 and Ethos-U65, enabling future use cases in a sustainable way.

Scalable Performance

Scales from 128 to 2048 MACs, providing up to 4 TOPs of performance at 1 GHz.

Generative AI at the Edge

Native support for transformer networks, along with support for Tensor Operator Set Architecture (TOSA) as a standard.

System Level Solution

Supported by Arm Corstone-320, a reference design with a unified toolchain and the extensive Ethos-U ecosystem.


The Arm Ethos-U85 is the highest performance implementation of the Arm Ethos-U NPU. It enables enhanced edge AI processing with support for transformer-based models and delivers 20% more energy efficiency than previous generations of Ethos. The key characteristics of Ethos-U85 include:


  • Scalable performance – 256 GOP/s up to 4 TOPs at 1 GHz
    • Scales from 128 to 2048 MACs
  • Further reduced energy consumption – 20% lower than previous Ethos-U NPUs
  • Native support for transformer-based networks

Ethos-U85 targets numerous different applications with use in high-performance Arm Cortex-A or low-power embedded devices based on Arm Cortex-M.


Visit Arm Developer for more details


Key Documentation

Compare all Ethos-U processors: download comparison PDF




Use Cases

Where Innovation and Ideas Come to Life

AI and ML are expanding and defining more applications than ever before, changing how we interact with devices and machines everywhere. Arm processor IP is scalable and flexible, so it can run any type of ML workload, today or in the future.

Talk with an Expert

As AI devices become more pervasive than ever, the Ethos-U85 can help create a better user experience for your products. Discover how by talking to an Arm expert today.

Contact Us

Related Products

Arm Corstone-320


Speeds time-to-market for edge AI solutions with software and an example subsystem. It integrates the Arm Cortex-M85, Arm DMA-350, Arm Mali-C55 and the Arm Ethos-U85 with support for transformer networks.


Cortex-M85 provides increased security and high performance on a single Cortex-M without the need to migrate to multicore or heterogeneous platforms.


The Arm Cortex-M55 processor with AI capabilities is the first Cortex-M processor to feature Arm Helium technology, enabling a significant uplift in power-efficient ML and DSP performance for IoT devices.

Arm Software and Tools

Software and Tools

Arm’s comprehensive suite of integrated software and tools make it easier and quicker to design, develop, and maintain AI-based IoT and automotive applications.

Architecture and Technologies

A Foundation of Silicon Success