r7i.8xlarge vs r7i.12xlarge
Side-by-side specs and pricing. On raw On-Demand list price, r7i.8xlarge is the cheaper of the two ($2.12/hr vs$3.18/hr) — but check the effective committed rate below before deciding, since Savings Plan and Reserved discounts differ by family.
| Attribute | r7i.8xlarge | r7i.12xlarge |
|---|---|---|
| vCPU | 32 | 48 |
| Memory | 256 GiB | 384 GiB |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Scalable (Sapphire Rapids) | Intel Xeon Scalable (Sapphire Rapids) |
| Network | 12.5 Gigabit | 18.8 Gigabit |
| On-Demand $/hr | $2.12 | $3.18 |
| On-Demand monthly | $1,545.26 | $2,317.90 |
| Max saving (commit) | −61% | −61% |
| Lowest effective $/hr | $0.8357 | $1.25 |
| Spot (indicative) | $0.6139 | $0.9843 |
List prices, directional. On-Demand, Reserved, and Savings Plan rates are AWS public list prices in USD; effective Savings Plan/RI rates fold in any upfront. Spot is indicative only (derived from the AWS Spot Instance Advisor) — never a firm quote. Always confirm in the AWS console before purchasing. Prices as of 2026-07-01.
Full price matrices: r7i.8xlarge pricing → · r7i.12xlarge pricing →