https://aws.amazon.com/polly/ We launched the compute optimized https://aws.amazon.com/blogs/aws/new-amazon-ec2-c6a-instances-powered-by-3rd-gen-amd-epyc-processors-for-compute-intensive-workloads/ in February 2022 powered by 3rd Gen AMD EPYC (Milan) processors, running at frequencies up to 3.6 GHz. Today, we’re announcing the general availability of new, compute optimized https://aws.amazon.com/ec2/instance-types/c7a, powered by the 4th Gen AMD EPYC (Genoa) processors with a maximum frequency of 3.7 GHz, which offer up to 50 percent higher performance compared to C6a instances. You can use this increased performance to process data faster, consolidate workloads, and lower the cost of ownership. C7a instances offer up to 50 percent higher performance compared to C6a instances.
C7a instances also support AES-256 compared to AES-128 in C6a instances for enhanced security.