Amazon ElastiCache expanded node options with Graviton4-based M8g, R8g, and C8gn families supporting Valkey and Memcached engines. These new node types provide up to 47% greater throughput, 43% lower 99th percentile latency, and 31% improved price-performance compared to equivalent Graviton3 nodes, depending on specific configurations. Moreover, M8g nodes offer up to 20% more memory per node, e.g., m8g.8xlarge provides 124.65 GiB versus 103.68 GiB on its predecessor.
C8gn nodes support network bandwidths up to 200 Gbps, benefiting network-intensive workloads. Availability spans over 30 AWS regions including GovCloud and China. Users can adopt these nodes by creating or modifying clusters via AWS Management Console, SDKs, or CLI. The performance improvements aim to optimize in-memory caching workloads across diverse use cases.
Source & further reading
Amazon ElastiCache now supports Graviton4-based M8g, R8g, and C8gn nodes ↗Source published 2026-08-06. 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.