x1e family
The x1e family has 6 sizes on AWS RDS, from 4 to 128 vCPUs and 122 to 3904 GiB of memory. In US East (N. Virginia), on-demand prices run $1.401 to $44.836 per hour for PostgreSQL, Single-AZ. It is sold in 11 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.x1e.xlarge | 4 | 122 | Oracle Enterprise BYOL | $1.401 | – |
| db.x1e.2xlarge | 8 | 244 | Oracle Enterprise BYOL | $2.802 | – |
| db.x1e.4xlarge | 16 | 488 | Oracle Enterprise BYOL | $5.604 | – |
| db.x1e.8xlarge | 32 | 976 | Oracle Enterprise BYOL | $11.209 | – |
| db.x1e.16xlarge | 64 | 1952 | Oracle Enterprise BYOL | $22.418 | – |
| db.x1e.32xlarge | 128 | 3904 | Oracle Enterprise BYOL | $44.836 | – |
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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.