r7i family
The r7i family has 23 sizes on AWS RDS, from 2 to 192 vCPUs and 16 to 1536 GiB of memory. In US East (N. Virginia), on-demand prices run $0.25 to $24.00 per hour for PostgreSQL, Single-AZ. It is sold in 29 regions and listed as memory optimized.
Sizes and prices in US East (N. Virginia)
| Type | vCPUs | Memory (GiB) | Tier | On-demand /hr | 1-yr reserved /hr |
|---|---|---|---|---|---|
| db.r7i.large | 2 | 16 | $0.25 | $0.167 | |
| db.r7i.xlarge | 4 | 32 | $0.5 | $0.335 | |
| db.r7i.2xlarge | 4 | 64 | $1.00 | $0.67 | |
| db.r7i.xlarge.tpc2.mem2x | 4 | 64 | Oracle Enterprise BYOL | $1.00 | $0.67 |
| db.r7i.xlarge.tpc2.mem4x | 4 | 128 | Oracle Enterprise BYOL | $2.00 | $1.34 |
| db.r7i.2xlarge.tpc2.mem4x | 8 | 256 | Oracle Enterprise BYOL | $4.00 | $2.68 |
| db.r7i.4xlarge | 16 | 128 | $2.00 | $1.34 | |
| db.r7i.4xlarge.tpc2.mem2x | 16 | 256 | Oracle Enterprise BYOL | $4.00 | $2.68 |
| db.r7i.4xlarge.tpc2.mem3x | 16 | 384 | Oracle Enterprise BYOL | $6.00 | $4.02 |
| db.r7i.6xlarge.tpc2.mem4x | 24 | 768 | Oracle Enterprise BYOL | $12.00 | $8.04 |
| db.r7i.8xlarge | 32 | 256 | $4.00 | $2.68 | |
| db.r7i.8xlarge.tpc2.mem3x | 32 | 768 | Oracle Enterprise BYOL | $12.00 | $8.04 |
| db.r7i.12xlarge | 48 | 384 | $6.00 | $4.02 | |
| db.r7i.16xlarge | 64 | 512 | $8.00 | $5.36 | |
| db.r7i.24xlarge | 96 | 768 | $12.00 | $8.04 | |
| db.r7i.metal-24xl | 96 | 768 | Oracle Enterprise BYOL | $9.00 | – |
| db.r7i.48xlarge | 192 | 1536 | $24.00 | $16.08 | |
| db.r7i.metal-48xl | 192 | 1536 | Oracle Enterprise BYOL | $18.00 | – |
| db.r7i.2xlarge.tpc2.mem8x | – | – | Oracle Enterprise BYOL | $8.00 | $5.36 |
| db.r7i.3xlarge.tpc2.mem4x | – | – | Oracle Enterprise BYOL | $6.00 | $4.02 |
| db.r7i.4xlarge.tpc2.mem4x | – | – | Oracle Enterprise BYOL | $8.00 | $5.36 |
| db.r7i.6xlarge.tpc2.mem2x | – | – | Oracle Enterprise BYOL | $6.00 | $4.02 |
| db.r7i.8xlarge.tpc2.mem2x | – | – | Oracle Enterprise BYOL | $8.00 | $5.36 |
Compare r7i
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Prices in USD per hour for PostgreSQL, Single-AZ; reserved prices are 1 year, no upfront. Updated 2026-11-12 from AWS public price lists. Compare all AWS RDS sizes.