db.r6g.16xlargevsdb.r6i.16xlarge
db.r6g.16xlarge is 10% cheaper than db.r6i.16xlarge on demand in US East (N. Virginia), saving $588.38 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.r6g.16xlarge | db.r6i.16xlarge |
|---|---|---|
| On-demand | $7.194/hr10% less | $8.00/hr |
| Lowest rate | $4.155/hr10% less1-yr reserved, no upfront | $4.621/hr1-yr reserved, no upfront |
| Size | 64 vCPUs, 512 GiB | 64 vCPUs, 512 GiB |
| Processor | AWS Graviton2 | Intel Xeon Scalable Ice Lake |
| 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.r6g.16xlarge | db.r6i.16xlarge | db.r6i.16xlarge vs db.r6g.16xlarge |
|---|---|---|---|
| On-demandPay by the hour | $7.194 | $8.00 | ▲ 11% |
| 1-yr reservedNo upfront | 42% off$4.155 | 42% off$4.621 | ▲ 11% |
Key differences
The biggest lead each one has.
Where db.r6g.16xlarge leads
On-demand price$7.194 vs $8.00 per hour
10% cheaperPhysical cores64 vs 32
2× higherWhere db.r6i.16xlarge leads
Sustained clock3.5 GHz vs 2.5 GHz
40% higherEBS baseline bandwidth20,000 Mbps vs 19,000 Mbps
5% higherSpecs
13 of 24 specs differ. Those are in bold.
| Compute6 of 8 differ | db.r6g.16xlarge | db.r6i.16xlarge |
|---|---|---|
| vCPUs | 64 | 64 |
| Physical cores | 64 | 32 |
| Threads per core | 1 | 2 |
| Architecture | arm64 | x86_64 |
| Processor | AWS Graviton2 | Intel Xeon Scalable Ice Lake |
| CPU maker | AWS | Intel |
| Sustained clock | 2.5 GHz | 3.5 GHz |
| Burstable | No | No |
| MemoryAll 1 match | db.r6g.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Memory (GiB) | 512 | 512 |
| Networking1 of 3 differ | db.r6g.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Network | 25 Gigabit | 25 Gbps |
| Network baseline | 25 Gbps | 25 Gbps |
| Network peak | 25 Gbps | 25 Gbps |
| Storage4 of 7 differ | db.r6g.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Storage | EBS Only | EBS Only |
| EBS baseline bandwidth | 19,000 Mbps | 20,000 Mbps |
| EBS max bandwidth | 19,000 Mbps | 20,000 Mbps |
| EBS baseline throughput | 2,375 MB/s | 2,500 MB/s |
| EBS max throughput | 2,375 MB/s | 2,500 MB/s |
| EBS baseline IOPS | 80,000 | 80,000 |
| EBS max IOPS | 80,000 | 80,000 |
| Instance details1 of 4 differ | db.r6g.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Family | r6g | r6i |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 128 | 128 |
| Other1 of 1 differ | db.r6g.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Hardware Basis | r6g.16xlarge | r6i.16xlarge |
On-demand prices by region
Cheapest for db.r6g.16xlarge first. PostgreSQL, USD per hour.
| Region | db.r6g.16xlarge | db.r6i.16xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $7.194 | $8.00 | ▲ 11% |
| US East (Ohio)us-east-2 | $7.194 | $8.00 | ▲ 11% |
| US West (Oregon)us-west-2 | $7.194 | $8.00 | ▲ 11% |
| Asia Pacific (Malaysia)ap-southeast-5 | $7.36 | $8.16 | ▲ 11% |
| Asia Pacific (Thailand)ap-southeast-7 | $7.36 | $8.16 | ▲ 11% |
| EU (Stockholm)eu-north-1 | $7.395 | $8.224 | ▲ 11% |
| Mexico (Central)mx-central-1 | $7.552 | $8.416 | ▲ 11% |
| Asia Pacific (Taipei)ap-east-2 | $7.776 | $8.64 | ▲ 11% |
| Canada (Central)ca-central-1 | $7.778 | $8.65 | ▲ 11% |
| Canada West (Calgary)ca-west-1 | $7.778 | $8.65 | ▲ 11% |
| EU (Ireland)eu-west-1 | $8.057 | $8.96 | ▲ 11% |
| US West (N. California)us-west-1 | $8.057 | $8.96 | ▲ 11% |
| Europe (Spain)eu-south-2 | $8.064 | $13.312 | ▲ 65% |
| Asia Pacific (Hyderabad)ap-south-2 | $8.192 | $13.728 | ▲ 68% |
| Asia Pacific (Mumbai)ap-south-1 | $8.201 | $9.12 | ▲ 11% |
| EU (Milan)eu-south-1 | $8.448 | $9.408 | ▲ 11% |
| EU (Paris)eu-west-3 | $8.448 | $9.408 | ▲ 11% |
| EU (London)eu-west-2 | $8.46 | $9.408 | ▲ 11% |
| Israel (Tel Aviv)il-central-1 | $8.47 | $9.41 | ▲ 11% |
| Asia Pacific (Osaka)ap-northeast-3 | $8.627 | $9.60 | ▲ 11% |
| Asia Pacific (Jakarta)ap-southeast-3 | $8.632 | $14.56 | ▲ 69% |
| Asia Pacific (Melbourne)ap-southeast-4 | $8.632 | $14.56 | ▲ 69% |
| Asia Pacific (Seoul)ap-northeast-2 | $8.632 | $9.60 | ▲ 11% |
| Asia Pacific (Singapore)ap-southeast-1 | $8.632 | $9.60 | ▲ 11% |
| Asia Pacific (Sydney)ap-southeast-2 | $8.632 | $9.60 | ▲ 11% |
| Asia Pacific (Tokyo)ap-northeast-1 | $8.632 | $9.60 | ▲ 11% |
| AWS GovCloud (US-East)us-gov-east-1 | $8.634 | $11.20 | ▲ 30% |
| AWS GovCloud (US-West)us-gov-west-1 | $8.634 | $11.20 | ▲ 30% |
| EU (Frankfurt)eu-central-1 | $8.776 | $9.76 | ▲ 11% |
| Middle East (Bahrain)me-south-1 | $8.863 | $9.856 | ▲ 11% |
| Middle East (UAE)me-central-1 | $8.864 | $14.643 | ▲ 65% |
| Asia Pacific (New Zealand)ap-southeast-6 | $9.072 | $10.08 | ▲ 11% |
| Asia Pacific (Hong Kong)ap-east-1 | $9.496 | $10.56 | ▲ 11% |
| Africa (Cape Town)af-south-1 | $9.581 | $10.656 | ▲ 11% |
| Europe (Zurich)eu-central-2 | $9.645 | $16.016 | ▲ 66% |
| South America (Sao Paulo)sa-east-1 | $14.967 | $16.768 | ▲ 12% |
Keep exploring
Each type’s own page, and how it compares with others.
db.r6g.16xlarge
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AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.