# Amazon RDS Memory-optimized (R-family) 48xlarge instances compared

> Compare all 3 Amazon RDS Memory-optimized (R-family) 48xlarge instances — monthly price across regions and engines, side by side.

Source: https://www.bytebase.com/dbcost/rds/compare/r-48xlarge/

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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.r7i.48xlarge | 192 | 1536 | $17,520 | $11,038 | — |
| db.r8g.48xlarge | 192 | 1536 | $16,749 | $10,552 | — |
| db.r8gd.48xlarge | 192 | 1536 | $19,132 | — | — |

## MySQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r7i.48xlarge | 192 | 1536 | $17,520 | $11,038 | — |
| db.r8g.48xlarge | 192 | 1536 | $16,749 | $10,552 | — |
| db.r8gd.48xlarge | 192 | 1536 | $19,132 | — | — |

## MariaDB (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r7i.48xlarge | 192 | 1536 | $17,520 | $11,038 | — |
| db.r8g.48xlarge | 192 | 1536 | $16,749 | $10,552 | — |
| db.r8gd.48xlarge | 192 | 1536 | $19,132 | — | — |