Today we announce the general availability of Amazon Elastic Computing Cloud (Amazon EC2) C8g and M8g instances.
C8g instances are Based on AWS Graviton4 and are ideal for compute-intensive workloads such as high performance computing (HPC), batch processing, gaming, video encoding, scientific modeling, distributed analytics, CPU-based machine learning (ML) inference, and ad serving.
M8g instances, also based on Graviton4, offer the best price-performance ratio for general-purpose workloads. M8g instances are ideal for applications such as application servers, microservices, game servers, mid-size data warehouses, and caching fleets.
Now let’s look at some of the improvements we’ve made available in both instances. The C8g and M8g instances offer larger instance sizes with up to three times more vCPUs (up to 48xl), three times more memory (up to 384GB for C8g and up to 768GB for M8g), 75 percent more memory bandwidth, and two times more L2 cache compared to the equivalent 7g instances. This helps you process larger amounts of data, scale your workloads, improve time to results, and lower your total cost of ownership (TCO). These instances also offer up to 50Gbps of network bandwidth and up to 40Gbps of storage bandwidth. Amazon Elastic Block Storage (Amazon EBS) Bandwidth compared to network bandwidth of up to 30 Gbps and Amazon EBS bandwidth of up to 20 Gbps on Graviton3-based instances. Similar to R8g instances, C8g and M8g instances offer two hardware sizes (metal-24xl and metal-48xl). You can right-size your instances and deploy workloads that benefit from direct access to physical resources.
The specifications for C8g instances are as follows.
| Instance Size |
Virtual CPUs |
Memory (GiB) |
Network bandwidth (Gbps) |
EBS Bandwidth (Gbps) |
| c8g.medium | 1 | 2 | Up to 12.5 | Up to 10 |
| c8g.large | 2 | 4 | Up to 12.5 | Up to 10 |
| c8g.extra large | 4 | 8 | Up to 12.5 | Up to 10 |
| c8g.2xlarge | 8 | 16 | Up to 15 | Up to 10 |
| c8g.4xlarge | 16 | 32 | Up to 15 | Up to 10 |
| c8g.8xlarge | 32 | 64 | 15 | 10 |
| c8g.12xlarge | 48 | 96 | 22.5 | 15 |
| c8g.16xlarge | 64 | 128 | 30 | 20 |
| c8g.24xlarge | 96 | 192 | 40 | 30 |
| c8g.48xlarge | 192 | 384 | 50 | 40 |
| c8g.metal-24xl | 96 | 192 | 40 | 30 |
| c8g.metal-48xl | 192 | 384 | 50 | 40 |
The specifications for the M8g instances are as follows.
| Instance Size |
Virtual CPUs |
Memory (GiB) |
Network bandwidth (Gbps) |
EBS Bandwidth (Gbps) |
| m8g.medium | 1 | 4 | Up to 12.5 | Up to 10 |
| m8g.large | 2 | 8 | Up to 12.5 | Up to 10 |
| m8g.extra large | 4 | 16 | Up to 12.5 | Up to 10 |
| m8g.2xlarge | 8 | 32 | Up to 15 | Up to 10 |
| m8g.4xlarge | 16 | 64 | Up to 15 | Up to 10 |
| m8g.8xlarge | 32 | 128 | 15 | 10 |
| m8g.12xlarge | 48 | 192 | 22.5 | 15 |
| m8g.16xlarge | 64 | 256 | 30 | 20 |
| m8g.24xlarge | 96 | 384 | 40 | 30 |
| m8g.48xlarge | 192 | 768 | 50 | 40 |
| m8g.metal-24xl | 96 | 384 | 40 | 30 |
| m8g.metal-48xl | 192 | 768 | 50 | 40 |
Good to know
- AWS Graviton4 processors offer enhanced security with always-on memory encryption, dedicated caches for each vCPU, and support for pointer authentication.
- These instances are built on the AWS Nitro System It is a broad collection of building blocks that offload many of the traditional virtualization functions to dedicated hardware and software. It offers high performance, high availability, and high security, reducing virtualization overhead.
- C8g and M8g instances are ideal for Linux-based workloads, including containerized and microservices-based applications, such as those running on Amazon Elastic Kubernetes Service (Amazon EKS) and Amazon Elastic Container Service (Amazon 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.
Available now
C8g and M8g instances are currently available in the US East (N. Virginia), US East (Ohio), US West (Oregon), and Europe (Frankfurt) AWS Regions. As is typical with Amazon EC2, you only pay for what you use. For more information, see Amazon EC2 PricingCheck out the collection of AWS Graviton Resources to help you get started migrating your applications to Graviton instance types. You can also visit the AWS Graviton Quick Start Program to begin your Graviton adoption journey.
For more information, please visit our Amazon EC2 Instances Pageand please send your comments to AWS re:Post for EC2 or through your usual AWS support contacts.
– Veliswa
