The mac1.metal pairs 12 vCPU with 32 GiB of RAM, the 2.67 GiB-per-vCPU ratio that marks a general-purpose instance. In the name, "mac" is macOS on Apple hardware, "1" is the generation and "metal" is the size within the mac1 family. It runs on Intel Core i7-8700B CPU at 3.2 GHz, and AWS introduced it in December 2020. AWS has since shipped mac2; mac2.metal is the direct replacement at this size. Rackspace Spot has no equivalent to offer: macOS licensing ties these instances to Apple hardware, which Rackspace Spot does not operate. Spot's largest VM tops out at 16 vCPU and 128 GiB, and even that is not the missing piece here. The table below prices what AWS charges; the honest answer on the Spot side is that this workload stays where it is.
| Region | AWS on-demand | AWS Spot | 1-yr Reserved | 3-yr Reserved | Rackspace Spot | You save |
|---|---|---|---|---|---|---|
| US East, N. Virginia | ||||||
| US Central, Chicago | no AWS region | |||||
| US Central, Dallas | no AWS region | |||||
| Hong Kong | ||||||
| Sydney, Australia | ||||||
| London, UK | ||||||
| US West, San Jose | ||||||
| US Central, Dallas 2 | no AWS region | |||||
| US East, N. Virginia 2 |