Our Most Powerful and Efficient Mid-Range Processor

The Arm Cortex-A processor series is designed for devices undertaking complex compute tasks, from edge to cloud, for next-generation experiences. Cortex-A55, an efficient mid-range processor, is designed for extreme scalability in constrained environments.

Features and Benefits
Broad Market Application

With a flexible design that meets requirements across multiple markets, the Cortex-A55 processor delivers greater performance, power efficiency and safety over its predecessor.

High Performance

Microarchitecture improvements provide more responsive user interactions for touchscreens and higher reaction speeds in autonomous automotive applications, for longer periods of sustained performance.

Efficient Processing

Fine-grained power control ensures Cortex-A55 delivers high performance with superior efficiency.

Use Cases
Where Innovation and Ideas Come to Life

Mobile VR

As mobile VR becomes more common, designers need processors that have the power to handle the required responsiveness—while not overheating a smartphone. The Cortex-A55 is designed to deliver highest performance in constrained environments, making it ideal for smaller devices.


The car is the most complex electronic device many of us will buy, with more than 100 electronic control units soon to become the norm for most vehicles. More than 85 percent of infotainment systems and many under-the-hood applications are built with Arm-based chips.

Talk with an Expert

Find out how Cortex-A55 can boost the responsiveness of your touchscreen-based devices.

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CoreSight SoC-600

CoreSight SOC-600

Arm CoreSight SoC-600 offers the most comprehensive library for the creation of debug and trace solutions. 

GIC Family

GIC Family

A Generic Interrupt Controller (GIC) is an exclusive block of IP that performs critical interrupt management, prioritization and routing. GICs are primarily used for boosting processor efficiency and supporting interrupt virtualization.

Cortex-A Processor

Cortex-A Processors

The Cortex-A processor series powers more advanced user experiences and richer interfaces, and provides the high-performance computing needed for complex healthcare applications, such as genomic sequencing.

Architecture and Technologies
A Foundation of Silicon Success

Arm-based chips, device architectures, and technologies orchestrate the performance of everything that makes modern life possible — from smartphones to agricultural sensors and from medical instruments to servers.

Cortex-A55 Resources

Everything you need to know to make the right decision for your project. Includes technical documentation, industry insights, and where to go for expert advice.



Industry News

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