AWS Launches EC2 C9g/C9gd Instances with Graviton5 Processors

Sébastien Stormacq· June 30, 2026 View original

▶ The 60-second brief

Summary

Amazon EC2 C9g and C9gd instances, powered by AWS Graviton5 processors, are now generally available, offering up to 25% better compute performance than Graviton4 instances. These new instances feature a 5x larger cache, the fastest memory in the cloud, and optional local NVMe storage for C9gd.

AWS has announced the general availability of its new Amazon EC2 C9g and C9gd instances, which are powered by the latest AWS Graviton5 processors. These instances represent a significant upgrade, delivering up to a 25% improvement in compute performance compared to their Graviton4 predecessors. Key enhancements include a fivefold increase in cache size and the fastest memory available among any processor instances in the cloud. Additionally, the C9gd instances offer local NVMe storage options, providing high-performance storage for demanding workloads.

Why it matters

Professionals can leverage these new instances for compute-intensive workloads to achieve higher performance, lower costs, and improved efficiency for their applications and services.

How to implement this in your domain

  1. 1Evaluate current compute-intensive workloads for migration suitability to C9g/C9gd instances.
  2. 2Benchmark existing applications on Graviton5 instances to quantify performance gains.
  3. 3Update infrastructure provisioning scripts and templates to include the new instance types.
  4. 4Train development and operations teams on optimizing applications for Graviton5 architecture.

Who benefits

Cloud ServicesSoftware DevelopmentData AnalyticsHigh-Performance Computing

Key takeaways

  • AWS Graviton5-powered EC2 C9g/C9gd instances are now available.
  • They offer up to 25% better compute performance than Graviton4.
  • Features include 5x larger cache and fastest cloud memory.
  • C9gd instances provide local NVMe storage.

Original post by Sébastien Stormacq

"Amazon EC2 C9g and C9gd instances, powered by AWS Graviton5, are now generally available. They deliver up to 25% better compute performance than Graviton4-based instances, 5x larger cache, fastest memory of any processor instances in the cloud, and local NVMe storage options (C9g…"

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Originally posted by Sébastien Stormacq on X · view source

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