The c8g.24xlarge pairs 96 vCPU with 192 GiB of RAM, the 2.00 GiB-per-vCPU ratio that marks a compute-optimized instance. In the name, "c" stands for compute, "8" is the generation, "g" marks AWS Graviton (ARM) processors and "24xlarge" is the size within the c8g family. It runs on AWS Graviton4 Processor at 2.7 GHz, and AWS introduced it in September 2024. AWS has since shipped c9g; c9g.24xlarge is the direct replacement at this size, scoring 3,406,470 CoreMark/s against this instance's 2,925,714 — roughly 16% more throughput for the same vCPU count. Spot's node ladder tops out below this size, so c8g.24xlarge becomes 6 × ch.vs1.2xlarge (96 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 | $3.829 | $1.016 | $2.523 | $1.682 | $0.246 | $3.583 savings |
| US Central, Chicago | no AWS region | $0.066 | ||||
| US Central, Dallas | no AWS region | $0.666 | ||||
| Hong Kong | $4.805 | $3.212 | $2.224 | $0.246 | $4.559 savings | |
| Sydney, Australia | $4.982 | $0.861 | $3.290 | $2.264 | $0.246 | $4.736 savings |
| London, UK | $4.533 | $0.466 | $2.993 | $2.060 | $0.786 | $3.747 savings |
| US West, San Jose | $4.758 | $0.934 | $3.142 | $2.163 | $0.012 | $4.746 savings |
| US Central, Dallas 2 | no AWS region | $0.732 | ||||
| US East, N. Virginia 2 | $3.829 | $1.016 | $2.523 | $1.682 | $0.972 | $2.857 savings |