AWS News Blog
Coming Soon – EC2 C6gn Instances – 100 Gbps Networking with AWS Graviton2 Processors
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Update: Amazon EC2 C6gn instances are generally available since December 18, 2020.
Based on the amazing feedback from customers such as Snap, NextRoll, Intuit, SmugMug, and Honeycomb who are running their workloads on Amazon Elastic Compute Cloud (Amazon EC2) instances powered by AWS Graviton2, today we are announcing an addition to our broad Arm-based Graviton2 portfolio with C6gn instances that deliver up to 100 Gbps network bandwidth, up to 38 Gbps Amazon Elastic Block Store (Amazon EBS) bandwidth, up to 40% higher packet processing performance, and up to 40% better price/performance versus comparable current generation x86-based network optimized instances.
Compared to C6g instances, this new instance type provides 4x higher network bandwidth, 4x higher packet processing performance, and 2x higher EBS bandwidth. This means that customers with workloads that need high networking bandwidth such as high performance computing (HPC), network appliance, real-time video communications, and data analytics, will be able to bring their biggest and most challenging applications to Arm and take advantage of the performance and cost-optimization.
C6gn instances will be available in 8 sizes:
| Name | vCPUs | Memory (GiB) |
Network Bandwidth (Gbps) |
EBS Throughput (Gbps) |
| c6gn.medium | 1 | 2 | Up to 25 | Up to 9.5 |
| c6gn.large | 2 | 4 | Up to 25 | Up to 9.5 |
| c6gn.xlarge | 4 | 8 | Up to 25 | Up to 9.5 |
| c6gn.2xlarge | 8 | 16 | Up to 25 | Up to 9.5 |
| c6gn.4xlarge | 16 | 32 | 25 | 9.5 |
| c6gn.8xlarge | 32 | 64 | 50 | 19 |
| c6gn.12xlarge | 48 | 96 | 75 | 28.5 |
| c6gn.16xlarge | 64 | 128 | 100 | 38 |
The new instances are built on the AWS Nitro System, a collection of AWS-designed hardware and software innovations that maximize resource efficiency. C6gn instances support Elastic Fabric Adapter (EFA) on the c6gn.16xlarge sizes for workloads that can take advantage of lower network latency (such as HPC and video processing) and use Message Passing Interface (MPI) for highly scalable clusters. These new instances also fully support network frameworks like Data Plane Development Kit (DPDK), making it easier to migrate network appliance workloads.
Coming Soon
EC2 C6gn instances will be available later this month and make it easier to optimize costs for HPC and workloads that require high network bandwidth and low latency. Let me know what you are going to build with them!
To get practice with the AWS Graviton2 architecture, you can try t4g.micro instances for free for up to 750 hours per month until March 31st, 2021.
Learn more about EC2 C6gn instances today.
— Danilo