db.r4.largevsdb.r5.large
db.r4.large and db.r5.large cost the same on demand in US East (N. Virginia), $0.25 per hour.
| At a glance | db.r4.large | db.r5.large |
|---|---|---|
| On-demand | $0.25/hr | $0.25/hr |
| Size | 2 vCPUs, 15.25 GiB | 2 vCPUs, 16 GiB |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.
| Option | db.r4.large | db.r5.large | db.r5.large vs db.r4.large |
|---|---|---|---|
| On-demandPay by the hour | $0.25 | $0.25 | Same |
| 1-yr reservedNo upfront | — | 42% off$0.1444 | — |
Key differences
The biggest lead each one has.
Where db.r4.large leads
No clear lead on the measures we compare.
Where db.r5.large leads
EBS max bandwidth4,750 Mbps vs 425 Mbps
11.2× higherSustained clock3.1 GHz vs 2.3 GHz
35% higherMemory (GiB)16 vs 15.25
5% higherSpecs
18 of 27 specs differ. Those are in bold.
| Compute5 of 10 differ | db.r4.large | db.r5.large |
|---|---|---|
| vCPUs | 2 | 2 |
| Physical cores | 1 | 1 |
| Threads per core | 2 | 2 |
| Architecture | x86_64 | – |
| Processor | Intel Xeon E5-2686 v4 (Broadwell) | – |
| CPU maker | Intel | Intel |
| Clock speed | 2.3 GHz | – |
| Sustained clock | 2.3 GHz | 3.1 GHz |
| Processor features | Intel AVX, Intel AVX2, Intel Turbo | – |
| Burstable | No | No |
| Memory1 of 1 differ | db.r4.large | db.r5.large |
|---|---|---|
| Memory (GiB) | 15.25 | 16 |
| Networking1 of 3 differ | db.r4.large | db.r5.large |
|---|---|---|
| Network | Up to 10 Gigabit | – |
| Network baseline | 0.75 Gbps | 0.75 Gbps |
| Network peak | 10 Gbps | 10 Gbps |
| Storage7 of 8 differ | db.r4.large | db.r5.large |
|---|---|---|
| Storage | EBS Only | EBS Only |
| EBS throughput | 400 Mbps | – |
| EBS baseline bandwidth | 425 Mbps | 650 Mbps |
| EBS max bandwidth | 425 Mbps | 4,750 Mbps |
| EBS baseline throughput | 53.125 MB/s | 81.25 MB/s |
| EBS max throughput | 53.125 MB/s | 593.75 MB/s |
| EBS baseline IOPS | 3,000 | 3,600 |
| EBS max IOPS | 3,000 | 18,750 |
| Instance details3 of 4 differ | db.r4.large | db.r5.large |
|---|---|---|
| Family | r4 | r5 |
| Category | Memory optimized | Memory optimized |
| Current generation | No | – |
| Normalization factor | 4 | 8 |
| Other1 of 1 differ | db.r4.large | db.r5.large |
|---|---|---|
| Hardware Basis | r4.large | r5.large |
On-demand prices by region
Cheapest for db.r4.large first. PostgreSQL, USD per hour.
| Region | db.r4.large | db.r5.large | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $0.25 | $0.25 | Same |
| US East (Ohio)us-east-2 | $0.25 | $0.25 | Same |
| US West (Oregon)us-west-2 | $0.25 | $0.25 | Same |
| Canada (Central)ca-central-1 | $0.2702 | $0.2703 | Same |
| EU (Ireland)eu-west-1 | $0.28 | $0.28 | Same |
| US West (N. California)us-west-1 | $0.28 | $0.28 | Same |
| Asia Pacific (Mumbai)ap-south-1 | $0.285 | $0.285 | Same |
| Asia Pacific (Melbourne)ap-southeast-4 | $0.2852 | $0.3 | ▲ 5% |
| EU (London)eu-west-2 | $0.294 | $0.294 | Same |
| EU (Paris)eu-west-3 | $0.294 | $0.294 | Same |
| Asia Pacific (Osaka)ap-northeast-3 | $0.3 | $0.3 | Same |
| Asia Pacific (Seoul)ap-northeast-2 | $0.3 | $0.3 | Same |
| Asia Pacific (Singapore)ap-southeast-1 | $0.3 | $0.3 | Same |
| Asia Pacific (Sydney)ap-southeast-2 | $0.3 | $0.3 | Same |
| Asia Pacific (Tokyo)ap-northeast-1 | $0.3 | $0.3 | Same |
| AWS GovCloud (US-East)us-gov-east-1 | $0.301 | $0.3 | Same |
| AWS GovCloud (US-West)us-gov-west-1 | $0.301 | $0.3 | Same |
| EU (Frankfurt)eu-central-1 | $0.305 | $0.305 | Same |
| South America (Sao Paulo)sa-east-1 | $0.5235 | $0.524 | Same |
Keep exploring
Each type’s own page, and how it compares with others.
AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.