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The C7gn instances that we previewed last year are now available and you can start using them today. The instances are designed for your most demanding network-intensive workloads (firewalls, virtual routers, load balancers, and so forth), data analytics, and tightly-coupled cluster computing jobs. They are powered by AWS Graviton3E processors and support up to 200 Gbps of network bandwidth.
Here are the specs:
| Instance Name | vCPUs | Memory | Network Bandwidth | EBS Bandwidth |
| c7gn.medium | 1 | 2 GiB | up to 25 Gbps | up to 10 Gbps |
| c7gn.large | 2 | 4 GiB | up to 30 Gbps | up to 10 Gbps |
| c7gn.xlarge | 4 | 8 GiB | up to 40 Gbps | up to 10 Gbps |
| c7gn.2xlarge | 8 | 16 GiB | up to 50 Gbps | up to 10 Gbps |
| c7gn.4xlarge | 16 | 32 GiB | 50 Gbps | up to 10 Gbps |
| c7gn.8xlarge | 32 | 64 GiB | 100 Gbps | up to 20 Gbps |
| c7gn.12xlarge | 48 | 96 GiB | 150 Gbps | up to 30 Gbps |
| c7gn.16xlarge | 64 | 128 GiB | 200 Gbps | up to 40 Gbps |
The increased network bandwidth is made possible by the new 5th generation AWS Nitro Card. As another benefit, these instances deliver the lowest Elastic Fabric Adapter (EFA) latency of any current EC2 instance.
Here’s a quick infographic that shows you how the C7gn instances and the Graviton3E processors compare to previous instances and processors:
As you can see, the Graviton3E processors deliver substantially higher memory bandwidth and compute performance than the Graviton2 processors, along with higher vector instruction performance than the Graviton3 processors.
C7gn instances are available in the US East (Ohio, N. Virginia), US West (Oregon), and Europe (Ireland) AWS Regions in On-Demand, Reserved Instance, Spot, and Savings Plan form. Dedicated Instances and Dedicated Hosts are also available.
— Jeff;
