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Arm-Based Compute

Oracle Cloud Infrastructure (OCI) Ampere Arm-based compute provides market-leading price-performance for AI, containers, big data, web services, and related workloads.

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Why choose OCI Arm-based compute?

Price-performance

OCI Arm–based instances deliver strong price-performance by combining efficient compute with Oracle Acceleron offload, enabling higher throughput with fewer resources.
Flexibility

Flexible VM shapes enable right-sizing of OCPUs and memory to match workload requirements, helping improve efficiency and reduce overprovisioning.
Enhanced security

OCI Arm–based instances use a secure-by-design architecture with Oracle Acceleron–enabled isolation and encryption to protect data without affecting performance.

Learn more about the launch of new Oracle Ampere A2 Arm-based compute shapes.

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Features of the OCI Ampere compute platform

Leading price-performance

Oracle Cloud Infrastructure offers Ampere Altra processors with an industry-leading 80 cores per CPU, with all cores capable of running at the maximum frequency of 3.0 Ghz consistently. Each core comes with its own 64 KB L1 I-cache, 64 KB L1 D-cache, and a huge 1 MB L2 D-cache, and delivers predictable performance.

Combined with Oracle Cloud Infrastructure’s high-performance cloud architecture, Ampere’s Altra processor delivers the best price-performance in the cloud.

Ampere A1 compute shapes are available in both bare metal with 160 cores and flexible VMs with up to 80 cores at a penny a core pricing, with cores billed at $0.01 per OCPU-hour and memory billed at $0.0015 per GB-hour in all regions.

Flexible shapes for efficient workloads

OCI Arm–based flexible shapes allow independent configuration of OCPUs and memory to align with application requirements. With the A4 Standard shapes, this flexibility is enhanced by Oracle Acceleron, helping improve throughput and efficiency for right-sizing resources, reducing overprovisioning, and running workloads more cost-effectively.

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Enhanced security

OCI Arm–based instances use a secure-by-design architecture that isolates workloads and protects data in transit and at rest. With Oracle Acceleron, infrastructure services, such as networking and storage, are handled separately from application workloads, enabling stronger isolation, line-rate encryption, and consistent performance without added overhead.

Ampere-based A4 shapes use a single-threaded core design, helping deliver consistent, predictable performance by reducing resource contention between threads. This approach simplifies workload isolation and supports more stable performance across cores, especially for scale-out and multitenant applications.

Linear scalability and predictable performance

OCI Arm–based instances are designed to deliver consistent, predictable performance for cloud native and scale-out applications. With A4 Standard shapes, performance is further enhanced by Oracle Acceleron, which reduces overhead and improves throughput by offloading networking and I/O—helping applications run efficiently at scale.

A4 shapes use a single-threaded core, helping deliver consistent performance by minimizing resource contention and ensuring each core is dedicated to application workloads. This approach supports predictable scaling and stable performance across distributed and multitenant environments.

Rich developer ecosystem

Oracle works closely with various technology and open source partners to enable our customers to access the latest technology and in-depth expertise within the partner ecosystem. Oracle brings forth ISV developer tools; open source organizations such as GitLab, Jenkins, and Docker; and technology partners such as Arm to support you in building and running server-side Arm-based solutions fast and porting existing applications seamlessly. Oracle offers Arm ports for Oracle Linux, Java, and MySQL to jumpstart your development on Ampere compute.

Choice of operating systems and runtimes

Oracle Ampere A1 and A2 compute platform shapes support commonly used Linux distributions such as Oracle Linux and Ubuntu. All these images are easily accessible and can be deployed from the OCI Console. The Oracle Linux Developer image for Ampere includes runtime languages support for Java, Python, PHP, Node.js, Go, and C/C++. The developer image enables you to install, configure, and launch a development environment that includes common programming languages and OCI client tools and utilities.

Oracle Ampere compute use cases

Container-based workloads

Ampere's performance characteristics in containers make OCI Ampere the ideal price-performance solution to run containerized workloads on your Kubernetes cluster. You can leverage OCI Ampere to run containers with OCI Kubernetes Engine, benefiting from the best price-performance at scale.

“Leveraging the power and flexibility of Kubernetes on Oracle Cloud Infrastructure A1 compute, we’ve been able to realize massive simulation model accuracy and performance improvements, which have contributed to the success that we have seen as a team and business since 2021. Moving forward, we’re excited about moving to OCI A2 to realize even more substantial performance gains as our partnership continues.”
—Matt Cadieux, CIO, Oracle Red Bull Racing

Media services and video streaming

OCI Ampere is ideal for running video service and web conferencing workloads, providing linear scalability, low latency, and predictable performance while protecting against noisy neighbor processor effects.

8x8, Inc., a leader in cloud communications services, adopted Ampere A1 instances and was able to roll out their enterprise-grade services within three weeks, achieving high performance and low latency.

“OCI Ampere processors have been performing really well for us. They give us very consistent linear performance, which is very important for applications such as real-time voice and video. Cost-performance has also been excellent. We are saving money, and we are doing something good for the environment, so we are hitting all three goals.”
—Mehdi Salour, SVP, Global Network and DevOps, 8x8

In-memory cache and databases

Arm compute delivers predictable performance for analytics, databases including Redis and MySQL, and other workloads. Memory-heavy workloads and multithreaded applications, such as in-memory databases and key-value stores, run well and offer great price-performance on Arm-based compute servers.

"We’ve experienced excellent performance running ScyllaDB on OCI Ampere compute. One unique characteristic is that we are able to scale the number of cores linearly, so that a VM with 64 cores will perform double that of a 32 core, quadruple a 16 core, etc. Running ScyllaDB on OCI Ampere enabled us to process over 4 million transactions per second, and 7 TB of data per node.”
—Dor Laor, CEO, ScyllaDB

General-purpose workloads

Ampere compute provides superior price-performance for general-purpose workloads such as web servers, application servers, and containers, as well as cloud-based scale-out workloads such as NGINX and web applications.

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