db.r5b.8xlarge pricing and specs in US East (N. Virginia)
32 vCPU · 256 GiB · 10 Gigabit · Intel Xeon Platinum 8000 series
$4.7360/hour on-demand · $3,457/month (MySQL, Single-AZ)
db.r5b.8xlarge is a memory-optimized RDS instance with 32 vCPU and 256 GiB, generation 5 of the r family. On-demand it costs $4.7360 an hour, about $3,457 a month if it runs all month. A one-year commitment with nothing up front works out at $2.7432 an hour and pays for itself above roughly 422 hours a month; below that, on-demand is cheaper. The three-year options go down to $1.7027 an hour, 64% below on-demand. The newer db.r6g.8xlarge offers the same size for $3.4370 an hour, 27% less and moves to Graviton. US East (N. Virginia) is already the cheapest region for db.r5b.8xlarge.
Pricing by engine (hourly, USD, Single-AZ)
| Option | MySQL | PostgreSQL | MariaDB | Aurora MySQL | Aurora PostgreSQL | Oracle SE2 | SQL Server Express | SQL Server Web | SQL Server Standard | SQL Server Enterprise |
|---|---|---|---|---|---|---|---|---|---|---|
| On-Demand | $4.7360 | $4.7360 | $4.7360 | — | — | — | — | — | $12.6980 | $20.6130 |
| 1y Std RI NU | $2.7432 | $2.7432 | $2.7432 | — | — | — | — | — | $12.0000 | $20.5613 |
| 1y Std RI PU | $2.6013 | $2.6013 | $2.6013 | — | — | — | — | — | $11.4286 | $19.5822 |
| 1y Std RI AU | $2.5540 | $2.5540 | $2.5540 | — | — | — | — | — | $11.2000 | $19.1905 |
| 3y Std RI PU | $1.7500 | $1.7500 | $1.7500 | — | — | — | — | — | $10.1588 | $18.5516 |
| 3y Std RI AU | $1.7027 | $1.7027 | $1.7027 | — | — | — | — | — | $9.9556 | $18.1805 |
Newer generations of the same size
Same family letter and size in a newer generation, ranked by price. “vCPU per $” uses vCPU as the performance proxy — newer chips usually add more, so it is a floor.
Graviton-eligible → db.r6g.8xlarge (-27%)| Type | $/h | Price Δ | vCPU per $ Δ | Saves / mo |
|---|---|---|---|---|
| db.r6g.8xlarge Graviton arch change | $3.4370 | -27% | +38% | $948 |
| db.r8g.8xlarge Graviton arch change | $3.8240 | -19% | +24% | $666 |
| db.r7g.8xlarge Graviton arch change | $3.8250 | -19% | +24% | $665 |
| db.r6i.8xlarge | $3.8400 | -19% | +23% | $654 |
| db.r5.8xlarge | $3.8400 | -19% | +23% | $654 |
| db.r7i.8xlarge | $4.0000 | -16% | -41% | $537 |
| db.r6gd.8xlarge Graviton arch change | $4.1140 | -13% | +15% | $454 |
| db.r8gd.8xlarge Graviton arch change | $4.3680 | -8% | +8% | $269 |
Cheapest regions for db.r5b.8xlarge
| Region | On-Demand $/h | vs us-east-1 | Saves / mo |
|---|---|---|---|
| US East (N. Virginia) us-east-1 | $4.7360 | current | — |
| US East (Ohio) us-east-2 | $4.7360 | 0.0% | $0 |
| US West (Oregon) us-west-2 | $4.7360 | 0.0% | $0 |
| Asia Pacific (Singapore) ap-southeast-1 | $5.6160 | +19% | $-642 |
| Asia Pacific (Tokyo) ap-northeast-1 | $5.7120 | +21% | $-712 |
| EU (Frankfurt) eu-central-1 | $5.7150 | +21% | $-715 |
Caveat: instance price is only part of the bill. Cross-region and internet data transfer, latency to your users, data-residency rules and service availability can outweigh a few percent on compute.
Price history (us-east-1)
Daily snapshots since the catalog started tracking this type; a row is added whenever a headline price changes.
| Date | OD MySQL | OD Windows | 1y RI | 3y RI | Spot p50 |
|---|---|---|---|---|---|
| 2026-09-22 | $4.7360 | — | $2.7432 | — | — |
All attributes
- vCPU
- 32
- Cores / threads per core
- —
- Memory
- 256 GiB
- Memory per vCPU
- 8.00 GiB
- Processor
- Intel Xeon Platinum 8000 series
- Architecture
- x86_64
- Sustained clock
- 3.1 GHz
- Hypervisor
- —
- Generation
- Current
- Burstable
- No
- Bare metal
- No
- Free tier eligible
- No
- Network performance
- 10 Gigabit
- Network baseline / burst
- —
- Max ENIs × IPv4 per ENI
- —
- IPv6 / ENA / EFA
- — / ENA / —
- EBS optimized
- —
- EBS bandwidth (baseline / max)
- 2500.0 / ? Mbps
- EBS IOPS (baseline / max)
- —
- EBS NVMe
- —
- Instance storage
- EBS only
- GPU
- —
- Placement groups
- —
- Hibernation / Nitro Enclaves
- — / —
- Dedicated hosts
- —
- Boot modes
- —
- Spot supported
- —
Public AWS list prices (USD), refreshed nightly (catalog 2026-11-06). RI and Savings Plan rates are effective hourly (upfront amortised over the term) and are charged for every hour of the term. Excludes taxes, data transfer and storage. How these numbers are sourced and checked. Not affiliated with Amazon Web Services.
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