R8g instances deliver up to 30% better performance over Graviton3-based R7g instances. These instances include DDR5-5600 memory and are ideal for a large number of workloads, such as databases, in-memory caches, and real-time big data analytics.

R8g instances are built on the Amazon Nitro System. The Amazon Nitro System is a combination of dedicated hardware and a lightweight hypervisor that delivers isolated multitenancy, private networking, and fast local storage.

Amazon Graviton-based instances are supported by most popular Linux operating systems. Many popular applications and services for security, monitoring and management, containers, and continuous integration and delivery (CI/CD) from Amazon Web Services and software partners also support Amazon Graviton-based instances.

Amazon Graviton4 is the latest generation of server processors designed by Amazon Web Services that provide the best performance and energy efficiency for workloads in Amazon EC2. Amazon Graviton4 processors deliver up to 30% better compute performance than Graviton3 processors.

Amazon Graviton4 processors offer enhanced security with always-on memory encryption, dedicated caches for every vCPU, and support for pointer authentication. R8g instances also support encrypted Amazon Elastic Block Store (Amazon EBS).

The Amazon Nitro System is a rich collection of building blocks that offloads many of the traditional virtualization functions to dedicated hardware and software. It delivers high performance, high availability, and high security, thus reducing virtualization overhead.