Amazon EC2 R9g and R9gd instances powered by AWS Graviton5 processors are now generally available
AWS launched general availability for R9g EC2 instances featuring Graviton5 processors, promising 25% higher compute performance over the previous generation.
Deep dive
- Graviton5 delivers 25% better compute performance per vCPU compared to Graviton4.
- New DDR5 8800 MT/s memory significantly increases throughput for memory-intensive workloads like databases and caches.
- R9gd instances provide integrated local NVMe-based SSD storage for low-latency scratch space.
- Nitro Isolation Engine (NIE) provides mathematically verified security for multi-tenant isolation.
- Instance Bandwidth Configuration (IBC) allows tuning network vs. EBS bandwidth by 25% to optimize specific workload requirements.
Decoder
- Graviton: AWS-designed 64-bit Arm-based server processors aimed at providing better price-performance than x86 alternatives.
- Formal Verification: A technique using mathematical proofs to verify that a hardware or software design behaves exactly as intended, minimizing the risk of edge-case security bugs.
- Nitro System: AWS's hardware-based virtualization stack that offloads networking, storage, and management from the main CPU.
Original article
Amazon EC2 R9g and R9gd instances powered by AWS Graviton5 processors are now generally available
Today, Amazon EC2 R9g and R9gd instances are generally available, powered by AWS Graviton5 processors. R9g instances are memory-optimized and deliver up to 25% better compute performance compared to Graviton4-based R8g instances, powered by the most energy efficient processor AWS has ever built.
R9g instances are ideal for memory-intensive workloads including databases, in-memory caches (Valkey, Redis, MemCached), real-time big data analytics, Linux-based workloads including containerized and micro-service-based applications (e.g. Kubernetes, Docker, EKS, ECS), as well as applications written in popular programming languages such as C/C++, Rust, Go, Java, Python, .NET Core, Node.js, Ruby, and PHP.
R9gd instances include local NVMe-based SSD block-level storage, ideal for memory-intensive workloads requiring fast, low-latency local storage such as open-source databases, distributed real-time big data analytics, large in-memory databases, and large caching workloads.
If you’re running workloads on R8g instances today, R9g gives you more performance per vCPU with faster memory, higher network and Amazon EBS bandwidth, and a larger L3 cache, all while using less energy.
What makes R9g different
Graviton5 processors bring several hardware improvements over Graviton4:
- Up to 25% higher compute performance per vCPU
- DDR5 8800 MT/s memory (up from 5600 MT/s in Graviton4), the fastest memory available in the cloud
- 5x larger L3 cache for better data locality
- Up to 2x higher network and EBS bandwidth for the largest instance sizes (up to 100 Gbps network, up to 72 Gbps EBS on the 48xlarge)
- Up to 3x higher packet-processing performance
R9g and R9gd instances support Instance Bandwidth Configuration (IBC), which lets you adjust the allocation of bandwidth between Amazon EBS and Amazon VPC networking by 25%. This helps optimize performance for workloads with specific bandwidth requirements such as databases and caching.
All R9g and R9gd instances run on the AWS Nitro System, which offloads virtualization, storage, and networking to dedicated hardware. This gives your applications near-bare-metal performance while maintaining strong security isolation between instances.
R9g and R9gd instances feature the Nitro Isolation Engine (NIE), the same enhancement to the Nitro System introduced with C9g and M9g instances earlier this year, which enforces isolation of instances and harnesses formal verification to provide assurances of isolation with mathematical precision. Nitro Isolation Engine is a purpose-built component that is responsible for enforcing isolation between virtual machines, including mediation of all access to virtual machine memory, CPU register state, and I/O devices through a minimal set of APIs. Nitro Isolation Engine leverages formal verification, a technique to mathematically demonstrate that the hardware or software behaves as intended, and not just in specific test cases. This intensive verification technique establishes Nitro as the first formally verified cloud hypervisor, pioneering a new standard for mathematically proven cloud security.
EC2 R9g and R9gd instance specifications
R9g and R9gd instances are each available in 11 sizes, from medium to metal-48xl. The following tables show the full specifications for each size.
| Instance size | vCPUs | Memory (GiB) | Instance Storage | Network Bandwidth (Gbps) | EBS Bandwidth (Gbps) |
|---|---|---|---|---|---|
| r9g.medium | 1 | 8 | EBS-Only | Up to 15 | Up to 12 |
| r9g.large | 2 | 16 | EBS-Only | Up to 15 | Up to 12 |
| r9g.xlarge | 4 | 32 | EBS-Only | Up to 15 | Up to 12 |
| r9g.2xlarge | 8 | 64 | EBS-Only | Up to 17 | Up to 12 |
| r9g.4xlarge | 16 | 128 | EBS-Only | Up to 17 | Up to 12 |
| r9g.8xlarge | 32 | 256 | EBS-Only | 17 | 12 |
| r9g.12xlarge | 48 | 384 | EBS-Only | 25 | 18 |
| r9g.16xlarge | 64 | 512 | EBS-Only | 34 | 24 |
| r9g.24xlarge | 96 | 768 | EBS-Only | 50 | 36 |
| r9g.48xlarge | 192 | 1536 | EBS-Only | 100 | 72 |
| r9g.metal‑48xl | 192 | 1536 | EBS-Only | 100 | 72 |
R9gd instances offer the same compute and networking performance as R9g, with the addition of local NVMe-based SSD storage for workloads that need fast, low-latency scratch space or temporary caches.
| Instance size | vCPUs | Memory (GiB) | Instance Storage (NVMe SSD) | Network Bandwidth (Gbps) | EBS Bandwidth (Gbps) |
|---|---|---|---|---|---|
| r9gd.medium | 1 | 8 | 1 x 59 GB | Up to 15 | Up to 12 |
| r9gd.large | 2 | 16 | 1 x 118 GB | Up to 15 | Up to 12 |
| r9gd.xlarge | 4 | 32 | 1 x 237 GB | Up to 15 | Up to 12 |
| r9gd.2xlarge | 8 | 64 | 1 x 474 GB | Up to 17 | Up to 12 |
| r9gd.4xlarge | 16 | 128 | 1 x 950 GB | Up to 17 | Up to 12 |
| r9gd.8xlarge | 32 | 256 | 1 x 1900 GB | 17 | 12 |
| r9gd.12xlarge | 48 | 384 | 3 x 950 GB | 25 | 18 |
| r9gd.16xlarge | 64 | 512 | 1 x 3800 GB | 34 | 24 |
| r9gd.24xlarge | 96 | 768 | 3 x 1900 GB | 50 | 36 |
| r9gd.48xlarge | 192 | 1536 | 3 x 3800 GB | 100 | 72 |
| r9gd.metal‑48xl | 192 | 1536 | 3 x 3800 GB | 100 | 72 |
Getting started
You can launch R9g and R9gd instances from the Amazon EC2 console using any supported Arm-based AMI. R9g instances support Amazon Linux 2023, Amazon Linux 2, Ubuntu 22.04+, RHEL 8.4+, SUSE Linux Enterprise Server 15 SP3+, Debian 12+, and other major Linux distributions.
If you’re migrating from R8g, no code changes are required for most applications. Select the equivalent R9g instance size and your application runs with better performance. For containerized workloads, R9g works with Amazon EKS, Amazon ECS, and standard Kubernetes deployments. Multi-arch container images built for Arm64 run without changes.
Several resources help you get started: the AWS Graviton Getting Started Guide covers how to build, run, and optimize workloads on Graviton-based instances. The Graviton Savings Dashboard helps you track cost savings. AWS Transform automates code transformations for migrating Java applications from x86 to Graviton.
Pricing and availability
Amazon EC2 R9g and R9gd instances are available in US East (N. Virginia, Ohio), US West (Oregon), and Europe (Frankfurt) Regions.
R9g and R9gd instances are available for purchase through Savings Plans, On-Demand, Spot Instances, Dedicated Instances, or Dedicated Hosts.
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