# Amazon RDS Memory-optimized (X-family) 16xlarge instances compared

> Compare all 3 Amazon RDS Memory-optimized (X-family) 16xlarge instances — monthly price across regions and engines, side by side.

Source: https://www.bytebase.com/dbcost/rds/compare/x-16xlarge/

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Pricing below is for US East (N. Virginia) (us-east-1); other regions, engines are on the page.

## PostgreSQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.x2g.16xlarge | 64 | 1024 | $7,615 | $4,112 | $2,742 |
| db.x2iedn.16xlarge | 64 | 2048 | $22,215 | — | — |

## MySQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.x2g.16xlarge | 64 | 1024 | $7,615 | $4,112 | $2,742 |
| db.x2iedn.16xlarge | 64 | 2048 | $22,215 | $18,935 | $13,748 |

## MariaDB (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.x2g.16xlarge | 64 | 1024 | $7,615 | $4,112 | $2,742 |
| db.x2iedn.16xlarge | 64 | 2048 | $22,215 | $18,935 | $13,748 |