Amazon Relational Database Service (Amazon RDS) for PostgreSQL, MySQL, and MariaDB now supports AWS Graviton2-based T4g database instances in Asia Pacific (Hyderabad), Europe (Spain), and Middle East (UAE) Regions. T4g database instances provide a baseline level of CPU performance, with the ability to burst CPU usage at any time for as long as required. Depending on the database engine, version, and workload, T4g database instances provide up to 36% better price performance over comparable x86-based T3 database instances.
Source:: Amazon AWS