Amazon EC2 C6g instances are powered by Arm-based AWS Graviton2 processors. They deliver up to 40% better price performance over C5 instances and are ideal for running advanced compute-intensive workloads. This includes workloads such as high performance computing (HPC), batch processing, ad serving, video encoding, gaming, scientific modelling, distributed analytics, and CPU-based machine learning inference.
C6g instances are available with local NVMe-based SSD block-level storage option (C6gd) for applications that need high-speed, low latency local storage. C6g instances with 100 Gbps networking and Elastic Fabric Adapter (EFA) support, called the C6gn instances, are also available for applications that need higher networking throughput, such as high performance computing (HPC), network appliance, real-time video communication, and data analytics.
High price performance for compute-intensive workloads
With C6g instances, customers can optimize for both higher performance and lower cost per vCPU. C6g instances deliver up to 40% better price performance over C5 instances1 for a large number of applications built on open-source software utilizing Linux distributions.
Flexibility and choice
C6g instances add to the broadest and deepest selection of EC2 instances and enable customers to run a broad set of compute-intensive workloads such as high performance computing, gaming, and machine learning inference. With C6gn and C6gd instances, customers can also run workloads that require high performance networking as well as those that need access to local NVMe-based SSD storage. Additionally, developers can build Arm applications natively in the cloud while leveraging the flexibility, security, reliability and scalability of running on EC2.
Enhanced security and maximized resource efficiency
C6g instances are powered by AWS Graviton2 processors and built on the AWS Nitro System. AWS Graviton2 processors feature always-on 256-bit DRAM encryption and 50% faster per core encryption performance compared to first-generation AWS Graviton. The AWS Nitro System is a combination of dedicated hardware and lightweight hypervisor which delivers practically all of the compute and memory resources of the host hardware to your instances for better overall performance and security. C6g instances also support encrypted EBS storage volumes by default.
Extensive ecosystem support
AWS Graviton2-based EC2 instances are supported by popular Linux operating systems including Amazon Linux 2, Red Hat, SUSE, and Ubuntu. Many popular applications and services from AWS and Independent Software Vendors also support AWS Graviton2-based instances, including Amazon ECS, Amazon EKS, Amazon ECR, Amazon CodeBuild, Amazon CodeCommit, Amazon CodePipeline, Amazon CodeDeploy, Amazon CloudWatch, Crowdstrike, Datadog, Docker, Drone, Dynatrace, GitLab, Jenkins, NGINX, Qualys, Rancher, Rapid7, Tenable, and TravisCI.
Powered by AWS Graviton2 processors
AWS Graviton2 Processors are based on 64-bit Arm Neoverse cores and custom silicon designed by AWS for optimized performance and cost. AWS Graviton2 Processors deliver 7x more performance, 4x more compute cores, 5x faster memory, and 2x larger caches versus first-generation AWS Graviton Processors.
High performance networking and storage
C6gn instances provide up to 100 Gbps networking bandwidth with support for Elastic Fabric Adapter (EFA). They also provide up to 38 Gbps EBS bandwidth, which is more than 2x compared to C5n instances. C6g instances are also available with NVMe-based SSD local instance storage option (C6gd).
Built on AWS Nitro System
The AWS Nitro System is a rich collection of building blocks that offloads many of the traditional virtualization functions to dedicated hardware and software to deliver high performance, high availability, and high security while also reducing virtualization overhead.
Instance Size vCPU Memory (GiB) Instance Storage (GB) Network Bandwidth (Gbps) EBS Bandwidth (Mbps) c6g.medium 1 2 EBS-Only Up to 10 Up to 4,750 c6g.large 2 4 EBS-Only Up to 10 Up to 4,750 c6g.xlarge 4 8 EBS-Only Up to 10 Up to 4,750 c6g.2xlarge 8 16 EBS-Only Up to 10 Up to 4,750 c6g.4xlarge 16 32 EBS-Only Up to 10 4750 c6g.8xlarge 32 64 EBS-Only 12 9000 c6g.12xlarge 48 96 EBS-Only 20 13500 c6g.16xlarge 64 128 EBS-Only 25 19000 c6g.metal 64 128 EBS-Only 25 19000 c6gd.medium 1 2 1 x 59 NVMe SSD Up to 10 Up to 4,750 c6gd.large 2 4 1 x 118 NVMe SSD Up to 10 Up to 4,750 c6gd.xlarge 4 8 1 x 237 NVMe SSD Up to 10 Up to 4,750 c6gd.2xlarge 8 16 1 x 474 NVMe SSD Up to 10 Up to 4,750 c6gd.4xlarge 16 32 1 x 950 NVMe SSD Up to 10 4,750 c6gd.8xlarge 32 64 1 x 1900 NVMe SSD 12 9,000 c6gd.12xlarge 48 96 2 x 1425 NVMe SSD 20 13,500 c6gd.16xlarge 64 128 2 x 1900 NVMe SSD 25 19,000 c6gd.metal 64 128 2 x 1900 NVMe SSD 25 19,000
Instance Size vCPU Memory (GiB) Instance Storage (GB) Network Bandwidth (Gbps) EBS Bandwidth (Gbps)
Up to 16
Up to 9.5
Up to 25
Up to 9.5
Up to 25
Up to 9.5
Up to 25
Up to 9.5
Up to 25
Blog Posts & Articles
Feb 1, 2021
AWS Announces General Availability of the Sixth Generation of Amazon EC2 Instances Powered By AWS Graviton2 Processors
Jun 11, 2020
Kai Sasaki (Treasure Data)
Mar 27, 2020
Andrei Frumusanu (Anandtech)
Mar 10, 2020
Jan 14, 2020
Dec 3, 2019
1 20% lower cost and up to 40% higher performance over Amazon EC2 C5 instances, based on internal testing of workloads with varying characteristics of compute and memory requirements