Amazon RDS M6g and R6g instance types, powered by AWS Graviton2 processors: In preview and now supported on more database versions
AWS Graviton2-based database instances in preview for Amazon Relational Database Service (RDS) now support more database versions. Graviton2 M6g and R6g database instances deliver better price performance over comparable current generation x86-based database instances. You can launch these database instances when using Amazon RDS for MySQL and Amazon RDS for PostgreSQL. With this launch, Graviton2 is now supported on RDS MySQL versions 8.0.17, 8.0.19, and 8.0.20 and RDS PostgreSQL 12.3, and 12.4. Support for Amazon Aurora and Amazon RDS for MariaDB is coming soon.
Source:: Amazon AWS