Starting today, the general-purpose Amazon EC2 M6a instances and compute-optimized Amazon EC2 C6a instances are now available in US West (N. California), Asia Pacific (Singapore, Sydney, Tokyo), and Europe (London) regions. M6a and C6a instances are powered by third-generation AMD EPYC processors with an all-core turbo frequency of up to 3.6 GHz. M6a instances deliver up to 35% better price performance than comparable M5a instances, while C6a instances deliver up to 15% better price performance than comparable C5a instances. Both M6a and C6a instances offer 10% lower cost than comparable x86-based EC2 instances. These instances are built on the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor that delivers practically all of the compute and memory resources of the host hardware to your instances for better overall performance and security.
Source:: Amazon AWS