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.

Learn More
Automotive

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.

Learn More
Talk with an Expert

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

Contact Us
Related Products and Services
Explore More Options and Features
CCI-500

CCI-550

Arm CoreLink CCI-550 Cache Coherent Interconnect provides full cache coherency between big.LITTLE processor clusters, Mali GPU, and other agents such as network interfaces or accelerators.

Learn More
CoreSight SoC-600

CoreSight SOC-600

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

Learn More
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.

Learn More
Cortex-A76

Cortex-A76

Brings the always-on ease of mobile to large-screen compute, delivering laptop-class performance with mobile efficiency. A significant step forward for mobile computing, whether on a smartphone or laptop.

Learn More
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.

 

Tools

Industry News

Visit Arm Developer