Amazon RDS compatibility is better than MySQL since RDS supports five different databases like SQL Server, MYSQL, PostgreSQL, and Oracle. Amazon RDS has Standard magnetic and Provisioned IOPS storages that help in fast and better performance. Amazon RDS is more secure for data and also a highly available relational database. Amazon RDS scales the database easily by adding replicas.
You can watch this video on Amazon RDS by Intellipaat to know the advantages of using Amazon RDS: