r7a.2xlarge is AWS's memory-optimized EC2 size at 8 vCPU and 64 GiB. In the name, "r" stands for RAM, "7" is the generation, "a" marks AMD processors and "2xlarge" is the size within the r7a family. It runs on AMD EPYC 9R14 Processor at Up to 3.7 GHz, and AWS introduced it in September 2023. AWS has since shipped r8a and r9g; r8a.2xlarge is the direct replacement at this size, scoring 390,019 CoreMark/s against this instance's 255,700 — roughly 53% more throughput for the same vCPU count. On Rackspace Spot the same shape is mh.vs2.xlarge — 8 vCPU, 64 GiB, matched on both dimensions, about 95% below the US East (N. Virginia) on-demand rate.
| Region | AWS on-demand | AWS Spot | 1-yr Reserved | 3-yr Reserved | Rackspace Spot | You save |
|---|---|---|---|---|---|---|
| US East, N. Virginia | $0.609 | $0.206 | $0.403 | $0.276 | $0.031 | $0.578 savings |
| US Central, Chicago | no AWS region | $0.011 | ||||
| US Central, Dallas | no AWS region | $0.081 | ||||
| Hong Kong | $0.011 | |||||
| Sydney, Australia | $0.131 | |||||
| London, UK | $0.041 | |||||
| US West, San Jose | $0.001 | |||||
| US Central, Dallas 2 | no AWS region | $0.121 |