EC2 C9g/C9gd instances use Graviton5 for 25% better performance

What's new

• Amazon EC2 C9g and C9gd instances are now generally available.
• Instances are powered by AWS Graviton5 processors.
• Performance improvements include up to 25% better compute performance compared to Graviton4.
• Features include 5x larger cache, faster memory, and local NVMe storage options for C9gd.

Why it matters

These Graviton5-based instances offer a tangible performance increase for CPU-bound applications. The larger cache and faster memory directly benefit workloads sensitive to memory bandwidth and latency, such as high-performance computing (HPC), in-memory databases, and certain types of analytics. Migrating from older Graviton generations or even x86 instances could yield significant cost-performance improvements for these specific use cases. Consider these for new deployments or targeted re-platforming efforts where compute is the primary bottleneck.

How to use it

Availability is currently limited to the us-east-1 region. Pricing details should be reviewed against existing instance types for direct cost comparison. Test current compute-intensive workloads to validate performance gains before broad migration.

Bottom line: Graviton5 EC2 instances are available, offering up to 25% better compute performance and enhanced memory capabilities for specific workloads.