Amazon DocumentDB introduced R8g.24xlarge and R8g.48xlarge instance types powered by AWS Graviton4 processors and DDR5 memory. These instances provide up to 192 vCPUs and 1,536 GiB memory to support complex, transactional, and memory-intensive document database workloads. The larger memory capacity aids working with extensive data sets and improves throughput for high-concurrency applications.
The new instances are available for DocumentDB version 5.0 and above, supporting both standard and IO-Optimized storage options. Customers can upgrade clusters through AWS management consoles and APIs. While AWS details the hardware enhancements, no independent performance benchmarks have been published to corroborate these improvements within production environments.
Source & further reading
Amazon DocumentDB (with MongoDB compatibility) now supports R8g.24xlarge and R8g.48xlarge instances ↗Source published 2026-07-10. 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.