r5b.8xlarge
Amazon EC2 R5 instances are the next generation of memory optimized instances for the Amazon Elastic Compute Cloud.
The r5b.8xlarge is a aws ec2 instance type featuring multiple vCPUs and optimized memory, commonly used for ec2 workloads.
Last updated at Tue May 19 2026
Instance Info
| Compute | Value |
| vCPUs | 32 |
| Memory | 256 GiB |
| Physical Processor | Intel Xeon Platinum 8259 (Cascade Lake) |
| Clock Speed | 3.1 GHz |
| CPU Architecture | 64-bit |
| GPU Memory | NA |
| Network | Value |
| Network Performance | 10 Gigabit |
| Enhanced Networking | Yes |
| Storage | Value |
| Storage | EBS only |
| EBS Throughput | 5 Gbps |
| Amazon | Value |
| Current Generation | Yes |
| Instance Type | r5b.8xlarge |
| Family | Memory optimized |
Family Instances
| Instance | vCPUs | Memory |
|---|---|---|
| r5b.large | 2 | 16 |
| r5b.xlarge | 4 | 32 |
| r5b.2xlarge | 8 | 64 |
| r5b.4xlarge | 16 | 128 |
| r5b.8xlarge | 32 | 256 |
| r5b.12xlarge | 48 | 384 |
| r5b.16xlarge | 64 | 512 |
| r5b.24xlarge | 96 | 768 |
Related Instances
| Instance | vCPUs | Memory |
|---|---|---|
| i8g.8xlarge | 32 | 256 GiB |
| i7i.8xlarge | 32 | 256 GiB |
| g6e.8xlarge | 32 | 256 GiB |
| i8ge.6xlarge | 24 | 192 GiB |
| g7e.8xlarge | 32 | 256 GiB |
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