r7i.4xlarge vs r7i.8xlarge
Side-by-side specs and pricing. On raw On-Demand list price, r7i.4xlarge is the cheaper of the two ($1.06/hr vs$2.12/hr) — but check the effective committed rate below before deciding, since Savings Plan and Reserved discounts differ by family.
| Attribute | r7i.4xlarge | r7i.8xlarge |
|---|---|---|
| vCPU | 16 | 32 |
| Memory | 128 GiB | 256 GiB |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Scalable (Sapphire Rapids) | Intel Xeon Scalable (Sapphire Rapids) |
| Network | Up to 12.5 Gigabit | 12.5 Gigabit |
| On-Demand $/hr | $1.06 | $2.12 |
| On-Demand monthly | $772.63 | $1,545.26 |
| Max saving (commit) | −61% | −61% |
| Lowest effective $/hr | $0.4178 | $0.8357 |
| Spot (indicative) | $0.3810 | $0.6139 |
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.4xlarge pricing → · r7i.8xlarge pricing →