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

> Compare all 14 Amazon RDS Memory-optimized (R-family) 16xlarge instances — monthly price across regions and engines, side by side.

Source: https://www.bytebase.com/dbcost/rds/compare/r-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.r4.16xlarge | 64 | 488 | $5,840 | — | — |
| db.r5.16xlarge | 64 | 512 | $5,840 | $3,148 | $2,118 |
| db.r5b.16xlarge | 64 | 512 | $6,915 | $3,729 | $2,486 |
| db.r5d.16xlarge | 64 | 512 | $6,674 | $4,872 | $3,537 |
| db.r6g.16xlarge | 64 | 512 | $5,252 | $2,832 | $1,904 |
| db.r6gd.16xlarge | 64 | 512 | $6,007 | $4,385 | $3,184 |
| db.r6i.16xlarge | 64 | 512 | $5,840 | $3,147 | $2,117 |
| db.r6id.16xlarge | 64 | 512 | $6,966 | $5,085 | $3,692 |
| db.r6idn.16xlarge | 64 | 512 | $9,056 | $6,611 | $4,800 |
| db.r6in.16xlarge | 64 | 512 | $8,080 | $5,899 | $4,283 |
| db.r7g.16xlarge | 64 | 512 | $5,585 | $4,077 | $2,960 |
| db.r7i.16xlarge | 64 | 512 | $5,840 | $3,679 | — |
| db.r8g.16xlarge | 64 | 512 | $5,583 | $3,517 | — |
| db.r8gd.16xlarge | 64 | 512 | $6,377 | — | — |

## MySQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r4.16xlarge | 64 | 488 | $5,606 | — | — |
| db.r5.16xlarge | 64 | 512 | $5,606 | $3,021 | $2,033 |
| db.r5b.16xlarge | 64 | 512 | $6,915 | $3,729 | $2,486 |
| db.r5d.16xlarge | 64 | 512 | $6,674 | $4,872 | $3,537 |
| db.r6g.16xlarge | 64 | 512 | $5,018 | $2,704 | $1,819 |
| db.r6gd.16xlarge | 64 | 512 | $6,007 | $4,385 | $3,184 |
| db.r6i.16xlarge | 64 | 512 | $5,606 | $3,021 | $2,033 |
| db.r6id.16xlarge | 64 | 512 | $6,966 | $5,085 | $3,692 |
| db.r6idn.16xlarge | 64 | 512 | $9,056 | $6,611 | $4,800 |
| db.r6in.16xlarge | 64 | 512 | $8,080 | $5,899 | $4,283 |
| db.r7g.16xlarge | 64 | 512 | $5,585 | $4,077 | $2,960 |
| db.r7i.16xlarge | 64 | 512 | $5,840 | $3,679 | — |
| db.r8g.16xlarge | 64 | 512 | $5,583 | $3,517 | — |
| db.r8gd.16xlarge | 64 | 512 | $6,377 | — | — |

## MariaDB (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r4.16xlarge | 64 | 488 | $5,606 | — | — |
| db.r5.16xlarge | 64 | 512 | $5,606 | $3,021 | $2,033 |
| db.r5b.16xlarge | 64 | 512 | $6,915 | $3,729 | $2,486 |
| db.r5d.16xlarge | 64 | 512 | $6,674 | — | — |
| db.r6g.16xlarge | 64 | 512 | $5,018 | $2,704 | $1,819 |
| db.r6gd.16xlarge | 64 | 512 | $6,007 | $4,385 | $3,184 |
| db.r6i.16xlarge | 64 | 512 | $5,606 | $3,021 | $2,033 |
| db.r6id.16xlarge | 64 | 512 | $6,966 | $5,085 | $3,692 |
| db.r6idn.16xlarge | 64 | 512 | $9,056 | $6,611 | $4,800 |
| db.r6in.16xlarge | 64 | 512 | $8,080 | $5,899 | $4,283 |
| db.r7g.16xlarge | 64 | 512 | $5,585 | $4,077 | $2,960 |
| db.r7i.16xlarge | 64 | 512 | $5,840 | $3,679 | — |
| db.r8g.16xlarge | 64 | 512 | $5,583 | $3,517 | — |
| db.r8gd.16xlarge | 64 | 512 | $6,377 | — | — |