db.r3.2xlargevsdb.r4.2xlarge
db.r3.2xlarge is 1% cheaper than db.r4.2xlarge on demand in US East (N. Virginia), saving $3.65 a month.
| At a glance | db.r3.2xlarge | db.r4.2xlarge |
|---|---|---|
| On-demand | $0.995/hr1% less | $1.00/hr |
| Size | 8 vCPUs, 61 GiB | 8 vCPUs, 61 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.r3.2xlarge | db.r4.2xlarge | db.r4.2xlarge vs db.r3.2xlarge |
|---|---|---|---|
| On-demandPay by the hour | $0.995 | $1.00 | ▲ 1% |
Key differences
The biggest lead each one has.
Where db.r3.2xlarge leads
On-demand price$0.995 vs $1.00 per hour
1% cheaperSustained clock2.5 GHz vs 2.3 GHz
9% higherWhere db.r4.2xlarge leads
Network baseline2.5 Gbps vs 1 Gbps
2.5× higherEBS baseline bandwidth1,700 Mbps vs 1,000 Mbps
70% higherSpecs
11 of 19 specs differ. Those are in bold.
| Compute1 of 6 differ | db.r3.2xlarge | db.r4.2xlarge |
|---|---|---|
| vCPUs | 8 | 8 |
| Physical cores | 4 | 4 |
| Threads per core | 2 | 2 |
| CPU maker | Intel | Intel |
| Sustained clock | 2.5 GHz | 2.3 GHz |
| Burstable | No | No |
| MemoryAll 1 match | db.r3.2xlarge | db.r4.2xlarge |
|---|---|---|
| Memory (GiB) | 61 | 61 |
| Networking1 of 2 differ | db.r3.2xlarge | db.r4.2xlarge |
|---|---|---|
| Network baseline | 1 Gbps | 2.5 Gbps |
| Network peak | 10 Gbps | 10 Gbps |
| Storage7 of 7 differ | db.r3.2xlarge | db.r4.2xlarge |
|---|---|---|
| Local disks | 1 × 160 GB SSD | – |
| EBS baseline bandwidth | 1,000 Mbps | 1,700 Mbps |
| EBS max bandwidth | 1,000 Mbps | 1,700 Mbps |
| EBS baseline throughput | 125 MB/s | 212.5 MB/s |
| EBS max throughput | 125 MB/s | 212.5 MB/s |
| EBS baseline IOPS | 8,000 | 12,000 |
| EBS max IOPS | 8,000 | 12,000 |
| Instance details1 of 2 differ | db.r3.2xlarge | db.r4.2xlarge |
|---|---|---|
| Family | r3 | r4 |
| Normalization factor | 16 | 16 |
| Other1 of 1 differ | db.r3.2xlarge | db.r4.2xlarge |
|---|---|---|
| Hardware Basis | r3.2xlarge | r4.2xlarge |
On-demand prices by region
Cheapest for db.r3.2xlarge first. PostgreSQL, USD per hour.
| Region | db.r3.2xlarge | db.r4.2xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $0.995 | $1.00 | ▲ 1% |
| US East (Ohio)us-east-2 | $0.995 | $1.00 | ▲ 1% |
| US West (Oregon)us-west-2 | $0.995 | $1.00 | ▲ 1% |
| EU (Ireland)eu-west-1 | $1.11 | $1.12 | ▲ 1% |
| US West (N. California)us-west-1 | $1.11 | $1.12 | ▲ 1% |
| Asia Pacific (Mumbai)ap-south-1 | $1.135 | $1.14 | Same |
| AWS GovCloud (US-West)us-gov-west-1 | $1.194 | $1.204 | ▲ 1% |
| Asia Pacific (Seoul)ap-northeast-2 | $1.195 | $1.20 | Same |
| Asia Pacific (Singapore)ap-southeast-1 | $1.195 | $1.20 | Same |
| Asia Pacific (Sydney)ap-southeast-2 | $1.195 | $1.20 | Same |
| Asia Pacific (Tokyo)ap-northeast-1 | $1.195 | $1.20 | Same |
| EU (Frankfurt)eu-central-1 | $1.20 | $1.22 | ▲ 2% |
| Canada (Central)ca-central-1 | $1.28 | $1.081 | ▼ 16% |
| EU (London)eu-west-2 | $1.36 | $1.176 | ▼ 14% |
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.