r5a.4xlarge
Amazon EC2 R5 instances are the next generation of memory optimized instances for the Amazon Elastic Compute Cloud.
The r5a.4xlarge is a aws ec2 instance type featuring multiple vCPUs and optimized memory, commonly used for ec2 workloads.
Last updated at Tue May 26 2026
Instance Info
| Compute | Value |
| vCPUs | 16 |
| Memory | 128 GiB |
| Physical Processor | AMD EPYC 7571 |
| Clock Speed | 2.5 GHz |
| CPU Architecture | 64-bit |
| GPU Memory | NA |
| Network | Value |
| Network Performance | Up to 10 Gigabit |
| Enhanced Networking | Yes |
| Storage | Value |
| Storage | EBS only |
| EBS Throughput | Up to 2120 Mbps |
| Amazon | Value |
| Current Generation | Yes |
| Instance Type | r5a.4xlarge |
| Family | Memory optimized |
Family Instances
| Instance | vCPUs | Memory |
|---|---|---|
| r5a.large | 2 | 16 |
| r5a.xlarge | 4 | 32 |
| r5a.2xlarge | 8 | 64 |
| r5a.4xlarge | 16 | 128 |
| r5a.8xlarge | 32 | 256 |
| r5a.12xlarge | 48 | 384 |
| r5a.16xlarge | 64 | 512 |
| r5a.24xlarge | 96 | 768 |
Related Instances
| Instance | vCPUs | Memory |
|---|---|---|
| i8g.4xlarge | 16 | 128 GiB |
| hpc7g.4xlarge | 16 | 128 GiB |
| i7i.4xlarge | 16 | 128 GiB |
| gr6.4xlarge | 16 | 128 GiB |
| g7e.4xlarge | 16 | 128 GiB |
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