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

> Compare all 2 Amazon RDS Memory-optimized (X-family) xlarge instances — monthly price across regions and engines, side by side.

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

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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.xlarge | 4 | 64 | $476 | $257 | $171 |
| db.x2iedn.xlarge | 4 | 128 | $1,388 | — | — |

## MySQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.x2g.xlarge | 4 | 64 | $476 | $257 | $171 |
| db.x2iedn.xlarge | 4 | 128 | $1,388 | $1,184 | $859 |

## MariaDB (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.x2g.xlarge | 4 | 64 | $476 | $257 | $171 |
| db.x2iedn.xlarge | 4 | 128 | $1,388 | $1,184 | $859 |