r8i.large is AWS's memory-optimized EC2 size at 2 vCPU and 16 GiB. In the name, "r" stands for RAM, "8" is the generation, "i" marks Intel processors and "large" is the size within the r8i family. It runs on Intel Xeon Scalable (Granite Rapids) at 3.9 GHz, and AWS introduced it in August 2025. AWS has since shipped r9g; r9g.large is the direct replacement at this size. On Rackspace Spot the same shape is mh.vs2.medium — 2 vCPU, 16 GiB, matched on both dimensions, 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 | $0.139 | $0.037 | $0.011 | $0.128 savings | ||
| US Central, Chicago | no AWS region | $0.021 | ||||
| US Central, Dallas | no AWS region | $0.041 | ||||
| Hong Kong | $0.002 | |||||
| Sydney, Australia | $0.167 | $0.051 | $0.011 | $0.155 savings | ||
| London, UK | $0.163 | $0.044 | $0.011 | $0.152 savings | ||
| US West, San Jose | $0.154 | $0.037 | $0.031 | $0.123 savings | ||
| US Central, Dallas 2 | no AWS region | $0.031 |