Starting today, the general-purpose Amazon Elastic Compute Cloud (Amazon EC2) M6a instances and compute-optimized Amazon EC2 C6a instances are available in South America (Sao Paulo) region. These instances are powered by third-generation AMD EPYC processors with an all-core turbo frequency of up to 3.6 GHz, and they are built on the AWS Nitro System. 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 instances offer 10% lower cost than comparable x86-based EC2 instances.
Source:: Amazon AWS