# Amazon RDS Memory-optimized (R-family) 8xlarge instances compared

> Compare all 15 Amazon RDS Memory-optimized (R-family) 8xlarge instances — monthly price across regions and engines, side by side.

Source: https://www.bytebase.com/dbcost/rds/compare/r-8xlarge/

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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.r3.8xlarge | 32 | 244 | $2,905 | — | — |
| db.r4.8xlarge | 32 | 244 | $2,920 | — | — |
| db.r5.8xlarge | 32 | 256 | $2,920 | $1,574 | $1,059 |
| db.r5b.8xlarge | 32 | 256 | $3,457 | $1,864 | $1,243 |
| db.r5d.8xlarge | 32 | 256 | $3,337 | $2,436 | $1,769 |
| db.r6g.8xlarge | 32 | 256 | $2,626 | $1,416 | $952 |
| db.r6gd.8xlarge | 32 | 256 | $3,003 | $2,193 | $1,592 |
| db.r6i.8xlarge | 32 | 256 | $2,920 | $1,573 | $1,059 |
| db.r6id.8xlarge | 32 | 256 | $3,483 | $2,543 | $1,846 |
| db.r6idn.8xlarge | 32 | 256 | $4,528 | $3,305 | $2,400 |
| db.r6in.8xlarge | 32 | 256 | $4,040 | $2,949 | $2,141 |
| db.r7g.8xlarge | 32 | 256 | $2,792 | $2,038 | $1,480 |
| db.r7i.8xlarge | 32 | 256 | $2,920 | $1,840 | — |
| db.r8g.8xlarge | 32 | 256 | $2,792 | $1,759 | — |
| db.r8gd.8xlarge | 32 | 256 | $3,189 | — | — |

## MySQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r3.8xlarge | 32 | 244 | $2,759 | — | — |
| db.r4.8xlarge | 32 | 244 | $2,803 | — | — |
| db.r5.8xlarge | 32 | 256 | $2,803 | $1,511 | $1,016 |
| db.r5b.8xlarge | 32 | 256 | $3,457 | $1,864 | $1,243 |
| db.r5d.8xlarge | 32 | 256 | $3,337 | $2,436 | $1,769 |
| db.r6g.8xlarge | 32 | 256 | $2,509 | $1,352 | $910 |
| db.r6gd.8xlarge | 32 | 256 | $3,003 | $2,193 | $1,592 |
| db.r6i.8xlarge | 32 | 256 | $2,803 | $1,511 | $1,016 |
| db.r6id.8xlarge | 32 | 256 | $3,483 | $2,543 | $1,846 |
| db.r6idn.8xlarge | 32 | 256 | $4,528 | $3,305 | $2,400 |
| db.r6in.8xlarge | 32 | 256 | $4,040 | $2,949 | $2,141 |
| db.r7g.8xlarge | 32 | 256 | $2,792 | $2,038 | $1,480 |
| db.r7i.8xlarge | 32 | 256 | $2,920 | $1,840 | — |
| db.r8g.8xlarge | 32 | 256 | $2,792 | $1,759 | — |
| db.r8gd.8xlarge | 32 | 256 | $3,189 | — | — |

## MariaDB (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r3.8xlarge | 32 | 244 | $2,759 | — | — |
| db.r4.8xlarge | 32 | 244 | $2,803 | — | — |
| db.r5.8xlarge | 32 | 256 | $2,803 | $1,511 | $1,016 |
| db.r5b.8xlarge | 32 | 256 | $3,457 | $1,864 | $1,243 |
| db.r5d.8xlarge | 32 | 256 | $3,337 | — | — |
| db.r6g.8xlarge | 32 | 256 | $2,509 | $1,352 | $910 |
| db.r6gd.8xlarge | 32 | 256 | $3,003 | $2,193 | $1,592 |
| db.r6i.8xlarge | 32 | 256 | $2,803 | $1,511 | $1,016 |
| db.r6id.8xlarge | 32 | 256 | $3,483 | $2,543 | $1,846 |
| db.r6idn.8xlarge | 32 | 256 | $4,528 | $3,305 | $2,400 |
| db.r6in.8xlarge | 32 | 256 | $4,040 | $2,949 | $2,141 |
| db.r7g.8xlarge | 32 | 256 | $2,792 | $2,038 | $1,480 |
| db.r7i.8xlarge | 32 | 256 | $2,920 | $1,840 | — |
| db.r8g.8xlarge | 32 | 256 | $2,792 | $1,759 | — |
| db.r8gd.8xlarge | 32 | 256 | $3,189 | — | — |