i7ie.12xlarge is AWS's storage-optimized EC2 size at 48 vCPU and 384 GiB. In the name, "i" is I/O, meaning local storage, "7" is the generation, "ie" marks Intel processors and extended capacity and "12xlarge" is the size within the i7ie family. It runs on Intel Xeon Scalable (Emerald Rapids) at 3.2 GHz, and AWS introduced it in December 2024. AWS has since shipped i8g; i8g.12xlarge is the direct replacement at this size, scoring 1,442,199 CoreMark/s against this instance's 1,129,456 — roughly 28% more throughput for the same vCPU count. The closest Spot shape is mh.vs1.2xlarge at 16 vCPU, so this instance maps to 3 of them — 48 vCPU and 384 GiB across the fleet, $6.24/hr on AWS in US East (N. Virginia), from $0.063/hr on Rackspace Spot. Spot delivers compute as managed Kubernetes, so a node pool of that size is the native shape of the answer rather than a workaround — provided the workload scales horizontally.
| Region | AWS on-demand | AWS Spot | 1-yr Reserved | 3-yr Reserved | Rackspace Spot | You save |
|---|---|---|---|---|---|---|
| US East, N. Virginia | $6.238 | $1.759 | $0.063 | $6.175 savings | ||
| US Central, Chicago | no AWS region | $0.063 | ||||
| US Central, Dallas | no AWS region | $0.393 | ||||
| Hong Kong | $8.234 | $0.063 | $8.171 savings | |||
| Sydney, Australia | $7.480 | $2.063 | $0.063 | $7.417 savings | ||
| London, UK | $7.259 | $0.953 | $0.393 | $6.866 savings | ||
| US West, San Jose | $6.900 | $0.765 | $0.006 | $6.894 savings | ||
| US Central, Dallas 2 | no AWS region | $0.726 |