The m6gd.12xlarge pairs 48 vCPU with 192 GiB of RAM, the 4.00 GiB-per-vCPU ratio that marks a general-purpose instance. In the name, "m" is the general-purpose line, "6" is the generation, "gd" marks AWS Graviton (ARM) processors and local NVMe storage and "12xlarge" is the size within the m6gd family. It runs on AWS Graviton2 Processor at 2.5 GHz, and AWS introduced it in July 2020. AWS has since shipped m7gd, m8gd and m9gd; m7gd.12xlarge is the direct replacement at this size, scoring 1,247,077 CoreMark/s against this instance's 933,005 — roughly 34% more throughput for the same vCPU count. Spot's node ladder tops out below this size, so m6gd.12xlarge becomes 3 × gp.vs2.2xlarge (48 vCPU, 192 GiB combined), about 94% below the US East (N. Virginia) on-demand rate. 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 | $2.170 | $0.545 | $1.367 | $0.937 | $0.123 | $2.047 savings |
| US Central, Chicago | no AWS region | $0.123 | ||||
| US Central, Dallas | no AWS region | $0.153 | ||||
| Hong Kong | $2.976 | $1.875 | $1.286 | $0.033 | $2.943 savings | |
| Sydney, Australia | $2.736 | $0.517 | $1.714 | $1.166 | $0.483 | $2.253 savings |
| London, UK | $2.515 | $0.620 | $1.585 | $1.087 | $0.663 | $1.852 savings |
| US West, San Jose | $2.544 | $0.669 | $1.613 | $1.115 | $0.453 | $2.091 savings |
| US Central, Dallas 2 | no AWS region | $0.003 | ||||
| US East, N. Virginia 2 | $2.170 | $0.545 | $1.367 | $0.937 | $0.453 | $1.717 savings |