Amazon RDS introduced M8a instances powered by AMD’s 5th generation EPYC processors for PostgreSQL, MySQL, and MariaDB databases. These instances provide a one-to-one ratio of vCPU to physical CPU cores, promising consistent per-core performance. High I/O workloads benefit from up to 75 Gbps network bandwidth and 60 Gbps Amazon EBS bandwidth. The M8a family is built on the AWS Nitro System, employing sixth-generation Nitro Cards to optimize performance and security.
These instances are available in multiple AWS Regions including US East, US West, Asia Pacific, and Europe. Access to M8a instances is provided through standard Amazon RDS management interfaces. While AMD’s EPYC architecture is known for balancing performance and efficiency, independent benchmarks would be necessary to validate performance claims in production environments.
Source & further reading
Amazon RDS now supports AMD-based M8a instances ↗Source published 2026-09-30. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.