AWS AmazonRDS: RDS documents new db.m8a and db.r8a instance class types

Service: AmazonRDS · 2026-09-30 · Documentation low

File: AmazonRDS/latest/UserGuide/Concepts.DBInstanceClass.Types.md

Summary

Added descriptive entries for the db.m8a general-purpose and db.r8a memory-optimized instance classes powered by 5th Gen AMD EPYC processors and the AWS Nitro System.

Security assessment

The change only describes new hardware instance classes and their performance characteristics. The mention of the Nitro System is descriptive, not a security feature or best-practice guidance.

Evidence

+  * db.m8a – General-purpose DB instance classes powered by 5th Generation AMD EPYC processors. These instance classes deliver balanced compute, memory, and networking for a broad range of general-purpose workloads. These processors run at frequencies of up to 4.5 GHz. They are powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor.

Diff

diff --git a/AmazonRDS/latest/UserGuide/Concepts.DBInstanceClass.Types.md b/AmazonRDS/latest/UserGuide/Concepts.DBInstanceClass.Types.md
index cfba1ff..47dedab 100644
--- a//AmazonRDS/latest/UserGuide/Concepts.DBInstanceClass.Types.md
+++ b//AmazonRDS/latest/UserGuide/Concepts.DBInstanceClass.Types.md
@@ -41,0 +42,2 @@ You can modify a DB instance to use one of the DB instance classes powered by AW
+  * db.m8a – General-purpose DB instance classes powered by 5th Generation AMD EPYC processors. These instance classes deliver balanced compute, memory, and networking for a broad range of general-purpose workloads. These processors run at frequencies of up to 4.5 GHz. They are powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor.
+
@@ -108,0 +111,2 @@ The memory-optimized R family supports the following instance class types:
+  * db.r8a – Instance classes powered by 5th Generation AMD EPYC processors. These instance classes are ideal for running memory-intensive workloads in open-source databases such as MySQL and PostgreSQL. These processors run at frequencies of up to 4.5 GHz. They are powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor.
+