Performance benefits of new Amazon EC2 R8a memory-optimized instances
Compute Blog
This article benchmarks the new Amazon EC2 R8a memory-optimized instances powered by 5th Generation AMD EPYC processors, demonstrating their performance advantages for MySQL workloads.
- R8a instances feature one vCPU per physical core with no simultaneous multi-threading for consistent performance
- Available in 12 sizes up to 192 vCPU with 1,536 GiB RAM and bare metal options
- HammerDB MySQL benchmarks show 55% improvement over R7a and 74% over R6a instances
- Transactions per minute improved 32% versus R7a and 63% versus R6a
- P99 latency reduced 14% versus R7a and 25% versus R6a
- Ideal for databases, in-memory caches, real-time analytics, and EDA applications
- SAP-certified with 38% more SAPS than R7a instances
R8a instances deliver significant performance gains for memory-intensive workloads, making them a compelling upgrade path from previous generation instances.
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