Memory Optimized (R5a)
- What it is
- High ratio of RAM to vCPU.
- For workloads that hold large datasets in memory.
- Use cases
- In-memory caches, large relational databases, real-time big-data analytics.
- SAP HANA and other enterprise in-memory suites (X and U families go even larger).
- The
asuffixa= AMD EPYC processors. Cheaper than the Intel equivalent (R5).g= AWS Graviton (Arm), best price-performance;i/no-suffix = Intel.
- Not to be confused with
- Storage Optimized (D2) — optimized for reading large data off disk, not holding it in RAM.
- Amazon MemoryDB for Redis — a managed in-memory database service, not an instance type.