The x1e.32xlarge pairs 128 vCPU with 3904 GiB of RAM, the 30.50 GiB-per-vCPU ratio that marks a memory-optimized instance. In the name, "x" is the extra-memory line, "1" is the generation, "e" marks extended capacity and "32xlarge" is the size within the x1e family. It runs on High Frequency Intel Xeon E7-8880 v3 (Haswell) at 2.3 GHz, and AWS introduced it in September 2017. AWS has since shipped x2gd and x8i; x2idn.32xlarge is the direct replacement at this size. Spot's largest VM is 16 vCPU and 128 GiB, so matching this instance would take 28 × mh.vs1.2xlarge — arithmetically true and operationally absurd. The Spot column below prices that whole fleet, so read it as a scale reference rather than a drop-in replacement: at this size the useful question is what a shard of the workload costs, which is $0.021/hr per node.
| Region | AWS on-demand | AWS Spot | 1-yr Reserved | 3-yr Reserved | Rackspace Spot | You save |
|---|---|---|---|---|---|---|
| US East, N. Virginia | $26.688 | $3.574 | $16.446 | $8.579 | $0.588 | $26.100 savings |
| US Central, Chicago | no AWS region | $0.588 | ||||
| US Central, Dallas | no AWS region | $3.668 | ||||
| Hong Kong | $0.588 | |||||
| Sydney, Australia | $38.688 | $3.869 | $23.839 | $12.437 | $0.588 | $38.100 savings |
| London, UK | $3.668 | |||||
| US West, San Jose | $0.056 | |||||
| US Central, Dallas 2 | no AWS region | $6.776 |