Amazon Web Services (AWS) has announced the general availability of its new AWS Graviton4-based Amazon Elastic Compute Cloud (Amazon EC2) R8g instances. These instances are ideal for memory-intensive workloads, offering improved performance and energy efficiency compared to previous generations.

R8g instances boast up to 3x more vCPUs, 3x the memory, 75% more memory bandwidth, and 2x more L2 cache over R7g instances. They also offer up to 50 Gbps network bandwidth and up to 40 Gbps EBS bandwidth.

R8g are also the first Graviton instances to offer two bare metal sizes (metal-24xl and metal-48xl), allowing users to right-size their instances and deploy workloads that benefit from direct access to physical resources.

In terms of energy efficiency, R8g instances provide the best energy efficiency for memory-intensive workloads in EC2. They are built on the AWS Nitro System, which offloads CPU virtualization, storage, and networking functions to dedicated hardware and software to enhance the performance and security of workloads.

R8g instances are ideal for all Linux-based workloads, including containerized and microservices-based applications, as well as applications written in popular programming languages such as C/C++, Rust, Go, Java, Python, .NET Core, Node.js, Ruby, and PHP.

With their general availability, R8g instances are now available in the US East (N. Virginia), US East (Ohio), US West (Oregon), and Europe (Frankfurt) AWS Regions. They can be purchased as Reserved Instances, On-Demand, Spot Instances, and via Savings Plans.

Overall, the AWS Graviton4-based R8g instances represent a significant step forward in cloud computing, offering customers a compelling combination of performance, energy efficiency, and cost.