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

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

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

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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.large | 2 | 15.25 | $183 | — | — |
| db.r4.large | 2 | 15.25 | $183 | — | — |
| db.r5.large | 2 | 16 | $183 | $98 | $66 |
| db.r5b.large | 2 | 16 | $216 | $117 | $78 |
| db.r5d.large | 2 | 16 | $209 | $152 | $111 |
| db.r6g.large | 2 | 16 | $164 | $89 | $60 |
| db.r6gd.large | 2 | 16 | $188 | $137 | $100 |
| db.r6i.large | 2 | 16 | $183 | $98 | $66 |
| db.r6id.large | 2 | 16 | $218 | $159 | $115 |
| db.r6idn.large | 2 | 16 | $283 | $207 | $150 |
| db.r6in.large | 2 | 16 | $253 | $184 | $134 |
| db.r7g.large | 2 | 16 | $174 | $127 | $93 |
| db.r7i.large | 2 | 16 | $183 | $115 | — |
| db.r8g.large | 2 | 16 | $174 | $110 | — |
| db.r8gd.large | 2 | 16 | $199 | — | — |

## MySQL (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r3.large | 2 | 15.25 | $175 | — | — |
| db.r4.large | 2 | 15.25 | $175 | — | — |
| db.r5.large | 2 | 16 | $175 | $94 | $64 |
| db.r5b.large | 2 | 16 | $216 | $117 | $78 |
| db.r5d.large | 2 | 16 | $209 | $152 | $111 |
| db.r6g.large | 2 | 16 | $157 | $85 | $57 |
| db.r6gd.large | 2 | 16 | $188 | $137 | $100 |
| db.r6i.large | 2 | 16 | $175 | $94 | $64 |
| db.r6id.large | 2 | 16 | $218 | $159 | $115 |
| db.r6idn.large | 2 | 16 | $283 | $207 | $150 |
| db.r6in.large | 2 | 16 | $253 | $184 | $134 |
| db.r7g.large | 2 | 16 | $174 | $127 | $93 |
| db.r7i.large | 2 | 16 | $183 | $115 | — |
| db.r8g.large | 2 | 16 | $174 | $110 | — |
| db.r8gd.large | 2 | 16 | $199 | — | — |

## MariaDB (us-east-1)

| Instance | vCPU | RAM (GB) | On-Demand | 1-yr Reserved | 3-yr Reserved |
|---|---|---|---|---|---|
| db.r3.large | 2 | 15.25 | $175 | — | — |
| db.r4.large | 2 | 15.25 | $175 | — | — |
| db.r5.large | 2 | 16 | $175 | $94 | $64 |
| db.r5b.large | 2 | 16 | $216 | $117 | $78 |
| db.r5d.large | 2 | 16 | $209 | — | — |
| db.r6g.large | 2 | 16 | $157 | $85 | $57 |
| db.r6gd.large | 2 | 16 | $188 | $137 | $100 |
| db.r6i.large | 2 | 16 | $175 | $94 | $64 |
| db.r6id.large | 2 | 16 | $218 | $159 | $115 |
| db.r6idn.large | 2 | 16 | $283 | $207 | $150 |
| db.r6in.large | 2 | 16 | $253 | $184 | $134 |
| db.r7g.large | 2 | 16 | $174 | $127 | $93 |
| db.r7i.large | 2 | 16 | $183 | $115 | — |
| db.r8g.large | 2 | 16 | $174 | $110 | — |
| db.r8gd.large | 2 | 16 | $199 | — | — |