Amazon EC2 instance families leveraging AWS Graviton4 processors, specifically C8gn, M8gn, and R8gn in 48xlarge and metal-48xl sizes, received upgrades doubling maximum Amazon EBS performance to 120 Gbps bandwidth and 480,000 IOPS from prior 60 Gbps and 240,000 IOPS.
The improvements benefit customers running network-heavy and storage-intensive applications such as data analytics and high-performance file systems. The enhancement is automatic for new instances and can be enabled on running instances by stop/start. The upgrade is available in all AWS Regions supporting these instance types at no additional cost.
Source & further reading
Amazon EC2 C8gn, M8gn, and R8gn instances now support higher Amazon EBS-optimized performance ↗Source published 2026-04-14. 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.