# Amazon Aurora Memory-optimized (R-family) 4xlarge instances compared

> Compare all 10 Amazon Aurora Memory-optimized (R-family) 4xlarge instances — monthly price across regions and engines, side by side.

Source: https://www.bytebase.com/dbcost/aurora/compare/r-4xlarge/

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

## Aurora PostgreSQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r4.4xlarge | 16 | 122 | $1,694 | — | — |
| db.r5.4xlarge | 16 | 128 | $1,694 | $923 | $591 |
| db.r6g.4xlarge | 16 | 128 | $1,515 | $826 | $528 |
| db.r6gd.4xlarge | 16 | 128 | $1,822 | $1,330 | $966 |
| db.r6i.4xlarge | 16 | 128 | $1,694 | $923 | $590 |
| db.r7g.4xlarge | 16 | 128 | $1,614 | $1,178 | $855 |
| db.r7i.4xlarge | 16 | 128 | $1,694 | $1,067 | — |
| db.r8g.4xlarge | 16 | 128 | $1,612 | $1,015 | — |
| db.r8gd.4xlarge | 16 | 128 | $1,822 | — | — |

## Aurora MySQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r3.4xlarge | 16 | 122 | $1,694 | — | — |
| db.r4.4xlarge | 16 | 122 | $1,694 | — | — |
| db.r5.4xlarge | 16 | 128 | $1,694 | $923 | $591 |
| db.r6g.4xlarge | 16 | 128 | $1,515 | $826 | $528 |
| db.r6i.4xlarge | 16 | 128 | $1,694 | $923 | $590 |
| db.r7g.4xlarge | 16 | 128 | $1,614 | $1,178 | $855 |
| db.r7i.4xlarge | 16 | 128 | $1,694 | $1,067 | — |
| db.r8g.4xlarge | 16 | 128 | $1,612 | $1,015 | — |