r7g instances — Memory optimized
Graviton3 memory-optimized instances for in-memory caches, databases, and analytics with a high memory-to-vCPU ratio.
The r7g family sits in AWS's memory optimized tier and runs on AWS Graviton (arm64) silicon. It spans8 sizes, from r7g.2xlarge (8 vCPU / 64 GiB) up to r7g.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. Graviton families like this one usually deliver the best price/performance in their tier, provided your stack runs on arm64.
All r7g sizes (us-east-1)
| Instance | vCPU | Memory | Network | On-Demand $/hr | Monthly | Max saving |
|---|---|---|---|---|---|---|
| r7g.2xlarge | 8 | 64 GiB | Up to 15 Gigabit | $0.4284 | $312.73 | −61% |
| r7g.4xlarge | 16 | 128 GiB | Up to 15 Gigabit | $0.8568 | $625.46 | −61% |
| r7g.8xlarge | 32 | 256 GiB | 15 Gigabit | $1.71 | $1,250.93 | −61% |
| r7g.12xlarge | 48 | 384 GiB | 22.5 Gigabit | $2.57 | $1,876.39 | −61% |
| r7g.16xlarge | 64 | 512 GiB | 30 Gigabit | $3.43 | $2,501.86 | −61% |
| r7g.large | 2 | 16 GiB | Up to 12.5 Gigabit | $0.1071 | $78.18 | −61% |
| r7g.medium | 1 | 8 GiB | Up to 12.5 Gigabit | $0.0536 | $39.13 | −61% |
| r7g.xlarge | 4 | 32 GiB | Up to 12.5 Gigabit | $0.2142 | $156.37 | −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.