The r7i.xlarge pairs 4 vCPU with 32 GiB of RAM, the 8.00 GiB-per-vCPU ratio that marks a memory-optimized instance. In the name, "r" stands for RAM, "7" is the generation, "i" marks Intel processors and "xlarge" is the size within the r7i family. It runs on Intel Xeon Scalable (Sapphire Rapids) at 3.2 GHz, and AWS introduced it in October 2023. AWS has since shipped r8i and r9g; r8i.xlarge is the direct replacement at this size. mh.vs2.large on Rackspace Spot lines up one-for-one: 4 vCPU and 32 GiB, about 92% 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 | $0.265 | $0.105 | $0.175 | $0.120 | $0.021 | $0.244 savings |
| US Central, Chicago | no AWS region | $0.061 | ||||
| US Central, Dallas | no AWS region | $0.021 | ||||
| Hong Kong | $0.006 | |||||
| Sydney, Australia | $0.317 | $0.110 | $0.209 | $0.144 | $0.006 | $0.311 savings |
| London, UK | $0.311 | $0.034 | $0.206 | $0.141 | $0.006 | $0.305 savings |
| US West, San Jose | $0.294 | $0.098 | $0.195 | $0.133 | $0.061 | $0.233 savings |
| US Central, Dallas 2 | no AWS region | $0.061 |