Amazon Relational Database Service (Amazon RDS) for PostgreSQL, MySQL, and MariaDB now support AWS Graviton3-based M7g and R7g database instances in US West (N. California), Asia Pacific (Hyderabad, Seoul), Canada (Central), Europe (London, Spain), and Middle East (Bahrain). Graviton3-based instances provide up to a 30% performance improvement and up to a 27% price/performance improvement (based on on-demand pricing) over Graviton2-based instances on RDS for open-source databases depending on database engine, version, and workload
Source:: Amazon AWS