db.r6g.8xlargevsdb.r6i.8xlarge
db.r6g.8xlarge is 10% cheaper than db.r6i.8xlarge on demand in US East (N. Virginia), saving $294.19 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.8xlarge | db.r6i.8xlarge |
|---|---|---|
| On-demand | $3.597/hr10% less | $4.00/hr |
| Lowest rate | $2.078/hr10% less1-yr reserved, no upfront | $2.31/hr1-yr reserved, no upfront |
| Size | 32 vCPUs, 256 GiB | 32 vCPUs, 256 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.8xlarge | db.r6i.8xlarge | db.r6i.8xlarge vs db.r6g.8xlarge |
|---|---|---|---|
| On-demandPay by the hour | $3.597 | $4.00 | ▲ 11% |
| 1-yr reservedNo upfront | 42% off$2.078 | 42% off$2.31 | ▲ 11% |
Key differences
The biggest lead each one has.
Where db.r6g.8xlarge leads
On-demand price$3.597 vs $4.00 per hour
10% cheaperPhysical cores32 vs 16
2× higherWhere db.r6i.8xlarge leads
Sustained clock3.5 GHz vs 2.5 GHz
40% higherEBS baseline bandwidth10,000 Mbps vs 9,500 Mbps
5% higherNetwork baseline12.5 Gbps vs 12 Gbps
4% higherSpecs
16 of 24 specs differ. Those are in bold.
| Compute6 of 8 differ | db.r6g.8xlarge | db.r6i.8xlarge |
|---|---|---|
| vCPUs | 32 | 32 |
| Physical cores | 32 | 16 |
| 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.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Memory (GiB) | 256 | 256 |
| Networking3 of 3 differ | db.r6g.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Network | 10 Gigabit | 12.5 Gbps |
| Network baseline | 12 Gbps | 12.5 Gbps |
| Network peak | 12 Gbps | 12.5 Gbps |
| Storage4 of 7 differ | db.r6g.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Storage | EBS Only | EBS Only |
| EBS baseline bandwidth | 9,500 Mbps | 10,000 Mbps |
| EBS max bandwidth | 9,500 Mbps | 10,000 Mbps |
| EBS baseline throughput | 1,187.5 MB/s | 1,250 MB/s |
| EBS max throughput | 1,187.5 MB/s | 1,250 MB/s |
| EBS baseline IOPS | 40,000 | 40,000 |
| EBS max IOPS | 40,000 | 40,000 |
| Instance details2 of 4 differ | db.r6g.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Family | r6g | r6i |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 128 | – |
| Other1 of 1 differ | db.r6g.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Hardware Basis | r6g.8xlarge | r6i.8xlarge |
On-demand prices by region
Cheapest for db.r6g.8xlarge first. PostgreSQL, USD per hour.
| Region | db.r6g.8xlarge | db.r6i.8xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $3.597 | $4.00 | ▲ 11% |
| US East (Ohio)us-east-2 | $3.597 | $4.00 | ▲ 11% |
| US West (Oregon)us-west-2 | $3.597 | $4.00 | ▲ 11% |
| Asia Pacific (Malaysia)ap-southeast-5 | $3.68 | $4.08 | ▲ 11% |
| Asia Pacific (Thailand)ap-southeast-7 | $3.68 | $4.08 | ▲ 11% |
| EU (Stockholm)eu-north-1 | $3.698 | $4.112 | ▲ 11% |
| Mexico (Central)mx-central-1 | $3.776 | $4.208 | ▲ 11% |
| Asia Pacific (Taipei)ap-east-2 | $3.888 | $4.32 | ▲ 11% |
| Canada (Central)ca-central-1 | $3.889 | $4.325 | ▲ 11% |
| Canada West (Calgary)ca-west-1 | $3.889 | $4.325 | ▲ 11% |
| EU (Ireland)eu-west-1 | $4.028 | $4.48 | ▲ 11% |
| US West (N. California)us-west-1 | $4.028 | $4.48 | ▲ 11% |
| Europe (Spain)eu-south-2 | $4.032 | $6.656 | ▲ 65% |
| Asia Pacific (Hyderabad)ap-south-2 | $4.096 | $6.864 | ▲ 68% |
| Asia Pacific (Mumbai)ap-south-1 | $4.10 | $4.56 | ▲ 11% |
| EU (Milan)eu-south-1 | $4.224 | $4.704 | ▲ 11% |
| EU (Paris)eu-west-3 | $4.224 | $4.704 | ▲ 11% |
| EU (London)eu-west-2 | $4.23 | $4.704 | ▲ 11% |
| Israel (Tel Aviv)il-central-1 | $4.234 | $4.70 | ▲ 11% |
| Asia Pacific (Osaka)ap-northeast-3 | $4.314 | $4.80 | ▲ 11% |
| Asia Pacific (Jakarta)ap-southeast-3 | $4.316 | $7.28 | ▲ 69% |
| Asia Pacific (Melbourne)ap-southeast-4 | $4.316 | $7.28 | ▲ 69% |
| Asia Pacific (Seoul)ap-northeast-2 | $4.316 | $4.80 | ▲ 11% |
| Asia Pacific (Singapore)ap-southeast-1 | $4.316 | $4.80 | ▲ 11% |
| Asia Pacific (Sydney)ap-southeast-2 | $4.316 | $4.80 | ▲ 11% |
| Asia Pacific (Tokyo)ap-northeast-1 | $4.316 | $4.80 | ▲ 11% |
| AWS GovCloud (US-East)us-gov-east-1 | $4.317 | $5.60 | ▲ 30% |
| AWS GovCloud (US-West)us-gov-west-1 | $4.317 | $5.60 | ▲ 30% |
| EU (Frankfurt)eu-central-1 | $4.388 | $4.88 | ▲ 11% |
| Middle East (Bahrain)me-south-1 | $4.431 | $4.928 | ▲ 11% |
| Middle East (UAE)me-central-1 | $4.432 | $7.322 | ▲ 65% |
| Asia Pacific (New Zealand)ap-southeast-6 | $4.536 | $5.04 | ▲ 11% |
| Asia Pacific (Hong Kong)ap-east-1 | $4.748 | $5.28 | ▲ 11% |
| Africa (Cape Town)af-south-1 | $4.79 | $5.328 | ▲ 11% |
| Europe (Zurich)eu-central-2 | $4.822 | $8.008 | ▲ 66% |
| South America (Sao Paulo)sa-east-1 | $7.483 | $8.384 | ▲ 12% |
Keep exploring
Each type’s own page, and how it compares with others.
db.r6g.8xlarge
db.r6g.8xlarge prices and specsEvery size in the r6g familyCompare db.r6g.8xlarge with
AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.