# Hardware and services
| HPCSUS03: Have you selected the most efficient EC2 instance type for your HPC workload? |
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Evaluate and stay current with new Amazon EC2 instance types for HPC workloads to maximize efficiency and sustainability. As new instances are introduced, you can adopt them for your workload and become more efficient.
## HPCSUS03-BP01 Continually monitor the release of new EC2 instance types
As stated in the performance efficiency Pillar, we recommend benchmarking your applications with different EC2 instances to identify which instance type can deliver the best performance for your HPC workloads. Using efficient Amazon EC2 instances in HPC workloads is crucial for lower resource usage and cost-effectiveness.
### Implementation guidance
Continually monitor the release of new instance types and take advantage of energy efficiency improvements, including those instance types designed to support specific workloads such as machine learning training and inference. Independent software vendors (ISVs) continue to update their supported architectures. Keep an eye for ISVs that can support the ARM architecture or accelerators, such as GPUs. Updating your applications helps you improve the efficiency of your workload.
## Key AWS services
+ [Amazon EC2 Instance types](https://aws.amazon.com/ec2/instance-types/#HPC_Optimize)
## Resources
+ [Deep dive on AWS Graviton2 processor-powered Amazon EC2 instances](https://www.youtube.com/watch?v=NLysl0QvqXU)
+ [Deep dive into AWS Graviton3 and Amazon EC2 C7g instances](https://www.youtube.com/watch?v=WDKwwFQKfSI&ab_channel=AWSEvents)
+ [AWS Graviton4-based Amazon EC2 R8g instances: best price performance in Amazon EC2](https://aws.amazon.com/blogs/aws/aws-graviton4-based-amazon-ec2-r8g-instances-best-price-performance-in-amazon-ec2)