db.r7g.xlargevsdb.r7i.xlarge
db.r7g.xlarge is 4% cheaper than db.r7i.xlarge on demand in US East (N. Virginia), saving $16.06 a month. They use different processor architectures (arm64 and x86_64), so software built for one may need rebuilding to run on the other.
| At a glance | db.r7g.xlarge | db.r7i.xlarge |
|---|---|---|
| On-demand | $0.478/hr4% less | $0.5/hr |
| Lowest rate | $0.3682/hr1-yr reserved, no upfront | $0.335/hr9% less1-yr reserved, no upfront |
| Size | 4 vCPUs, 32 GiB | 4 vCPUs, 32 GiB |
| Architecture | arm64 | x86_64 |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.
| Option | db.r7g.xlarge | db.r7i.xlarge | db.r7i.xlarge vs db.r7g.xlarge |
|---|---|---|---|
| On-demandPay by the hour | $0.478 | $0.5 | ▲ 5% |
| 1-yr reservedNo upfront | 23% off$0.3682 | 33% off$0.335 | ▼ 9% |
| 1-yr savings planHourly commitment | 20% off$0.3824 | 20% off$0.4 | ▲ 5% |
Key differences
The biggest lead each one has.
Where db.r7g.xlarge leads
On-demand price$0.478 vs $0.5 per hour
4% cheaperPhysical cores4 vs 2
2× higherNetwork baseline1.876 Gbps vs 1.562 Gbps
20% higherWhere db.r7i.xlarge leads
Sustained clock3.2 GHz vs 2.6 GHz
23% higherSpecs
14 of 24 specs differ. Those are in bold.
| Compute6 of 8 differ | db.r7g.xlarge | db.r7i.xlarge |
|---|---|---|
| vCPUs | 4 | 4 |
| Physical cores | 4 | 2 |
| Threads per core | 1 | 2 |
| Architecture | arm64 | x86_64 |
| Processor | – | Intel Xeon Scalable (Sapphire Rapids 8488C) |
| CPU maker | AWS | Intel |
| Sustained clock | 2.6 GHz | 3.2 GHz |
| Burstable | No | No |
| MemoryAll 1 match | db.r7g.xlarge | db.r7i.xlarge |
|---|---|---|
| Memory (GiB) | 32 | 32 |
| Networking2 of 3 differ | db.r7g.xlarge | db.r7i.xlarge |
|---|---|---|
| Network | – | Up to 12.5 Gbps |
| Network baseline | 1.876 Gbps | 1.562 Gbps |
| Network peak | 12.5 Gbps | 12.5 Gbps |
| Storage1 of 7 differ | db.r7g.xlarge | db.r7i.xlarge |
|---|---|---|
| Storage | – | EBS Only |
| EBS baseline bandwidth | 1,250 Mbps | 1,250 Mbps |
| EBS max bandwidth | 10,000 Mbps | 10,000 Mbps |
| EBS baseline throughput | 156.25 MB/s | 156.25 MB/s |
| EBS max throughput | 1,250 MB/s | 1,250 MB/s |
| EBS baseline IOPS | 6,000 | 6,000 |
| EBS max IOPS | 40,000 | 40,000 |
| Instance details4 of 4 differ | db.r7g.xlarge | db.r7i.xlarge |
|---|---|---|
| Family | r7g | r7i |
| Category | – | Memory optimized |
| Current generation | – | Yes |
| Normalization factor | 8 | – |
| Other1 of 1 differ | db.r7g.xlarge | db.r7i.xlarge |
|---|---|---|
| Hardware Basis | r7g.xlarge | r7i.xlarge |
On-demand prices by region
Cheapest for db.r7g.xlarge first. PostgreSQL, USD per hour.
| Region | db.r7g.xlarge | db.r7i.xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $0.478 | $0.5 | ▲ 5% |
| US East (Ohio)us-east-2 | $0.478 | $0.5 | ▲ 5% |
| US West (Oregon)us-west-2 | $0.478 | $0.5 | ▲ 5% |
| Asia Pacific (Malaysia)ap-southeast-5 | $0.488 | $0.51 | ▲ 5% |
| Asia Pacific (Thailand)ap-southeast-7 | $0.488 | $0.594 | ▲ 22% |
| EU (Stockholm)eu-north-1 | $0.4908 | $0.514 | ▲ 5% |
| Mexico (Central)mx-central-1 | $0.502 | $0.526 | ▲ 5% |
| Asia Pacific (Taipei)ap-east-2 | $0.516 | $0.54 | ▲ 5% |
| Canada (Central)ca-central-1 | $0.5164 | $0.54 | ▲ 5% |
| Europe (Spain)eu-south-2 | $0.5356 | $0.56 | ▲ 5% |
| US West (N. California)us-west-1 | $0.5356 | $0.56 | ▲ 5% |
| EU (Ireland)eu-west-1 | $0.536 | $0.56 | ▲ 4% |
| Asia Pacific (Hyderabad)ap-south-2 | $0.544 | $0.66 | ▲ 21% |
| Asia Pacific (Mumbai)ap-south-1 | $0.544 | $0.57 | ▲ 5% |
| EU (London)eu-west-2 | $0.561 | $0.588 | ▲ 5% |
| EU (Milan)eu-south-1 | $0.561 | $0.588 | ▲ 5% |
| Asia Pacific (Seoul)ap-northeast-2 | $0.5738 | $0.6 | ▲ 5% |
| Asia Pacific (Jakarta)ap-southeast-3 | $0.574 | $0.6 | ▲ 5% |
| Asia Pacific (Osaka)ap-northeast-3 | $0.574 | $0.7 | ▲ 22% |
| Asia Pacific (Singapore)ap-southeast-1 | $0.574 | $0.6 | ▲ 5% |
| Asia Pacific (Sydney)ap-southeast-2 | $0.574 | $0.6 | ▲ 5% |
| Asia Pacific (Tokyo)ap-northeast-1 | $0.574 | $0.6 | ▲ 5% |
| AWS GovCloud (US-East)us-gov-east-1 | $0.574 | $0.6 | ▲ 5% |
| AWS GovCloud (US-West)us-gov-west-1 | $0.574 | $0.6 | ▲ 5% |
| EU (Frankfurt)eu-central-1 | $0.582 | $0.61 | ▲ 5% |
| Asia Pacific (New Zealand)ap-southeast-6 | $0.6028 | $0.63 | ▲ 5% |
| EU (Paris)eu-west-3 | $0.636 | $0.588 | ▼ 8% |
| South America (Sao Paulo)sa-east-1 | $0.76 | $0.795 | ▲ 5% |
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.