r7i instances — Memory optimized
4th-gen Intel Xeon memory-optimized instances for memory-heavy x86 workloads.
The r7i family sits in AWS's memory optimized tier and runs on Intel x86_64 silicon. It spans9 sizes, from r7i.2xlarge (8 vCPU / 64 GiB) up to r7i.xlarge (4 vCPU /32 GiB). Pricing scales roughly linearly with size, so the per-vCPU cost is similar across the family — pick the smallest size that fits your workload's memory and CPU headroom, then use a Savings Plan or Reserved Instance to cut the effective rate. x86 families like this one maximize software compatibility for workloads that are not yet arm64-ready.
All r7i sizes (us-east-1)
| Instance | vCPU | Memory | Network | On-Demand $/hr | Monthly | Max saving |
|---|---|---|---|---|---|---|
| r7i.2xlarge | 8 | 64 GiB | Up to 12.5 Gigabit | $0.5292 | $386.32 | −61% |
| r7i.4xlarge | 16 | 128 GiB | Up to 12.5 Gigabit | $1.06 | $772.63 | −61% |
| r7i.8xlarge | 32 | 256 GiB | 12.5 Gigabit | $2.12 | $1,545.26 | −61% |
| r7i.12xlarge | 48 | 384 GiB | 18.8 Gigabit | $3.18 | $2,317.90 | −61% |
| r7i.16xlarge | 64 | 512 GiB | 25 Gigabit | $4.23 | $3,090.53 | −61% |
| r7i.24xlarge | 96 | 768 GiB | 37.5 Gigabit | $6.35 | $4,635.79 | −61% |
| r7i.48xlarge | 192 | 1536 GiB | 50 Gigabit | $12.70 | $9,271.58 | −61% |
| r7i.large | 2 | 16 GiB | Up to 12.5 Gigabit | $0.1323 | $96.58 | −61% |
| r7i.xlarge | 4 | 32 GiB | Up to 12.5 Gigabit | $0.2646 | $193.16 | −61% |
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.