db.r6g.4xlargevsdb.r6gd.4xlarge
db.r6g.4xlarge is 13% cheaper than db.r6gd.4xlarge on demand in US East (N. Virginia), saving $189.07 a month.
| At a glance | db.r6g.4xlarge | db.r6gd.4xlarge |
|---|---|---|
| On-demand | $1.798/hr13% less | $2.057/hr |
| Lowest rate | $1.039/hr34% less1-yr reserved, no upfront | $1.584/hr1-yr reserved, no upfront |
| Size | 16 vCPUs, 128 GiB | 16 vCPUs, 128 GiB |
| Processor | AWS Graviton2 | AWS Graviton2 |
| Architecture | arm64 | arm64 |
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.4xlarge | db.r6gd.4xlarge | db.r6gd.4xlarge vs db.r6g.4xlarge |
|---|---|---|---|
| On-demandPay by the hour | $1.798 | $2.057 | ▲ 14% |
| 1-yr reservedNo upfront | 42% off$1.039 | 23% off$1.584 | ▲ 52% |
Key differences
The biggest lead each one has.
Where db.r6g.4xlarge leads
On-demand price$1.798 vs $2.057 per hour
13% cheaperWhere db.r6gd.4xlarge leads
No clear lead on the measures we compare.
Specs
4 of 25 specs differ. Those are in bold.
| ComputeAll 8 match | db.r6g.4xlarge | db.r6gd.4xlarge |
|---|---|---|
| vCPUs | 16 | 16 |
| Physical cores | 16 | 16 |
| Threads per core | 1 | 1 |
| Architecture | arm64 | arm64 |
| Processor | AWS Graviton2 | AWS Graviton2 |
| CPU maker | AWS | AWS |
| Sustained clock | 2.5 GHz | 2.5 GHz |
| Burstable | No | No |
| MemoryAll 1 match | db.r6g.4xlarge | db.r6gd.4xlarge |
|---|---|---|
| Memory (GiB) | 128 | 128 |
| NetworkingAll 3 match | db.r6g.4xlarge | db.r6gd.4xlarge |
|---|---|---|
| Network | Up to 10 Gigabit | Up to 10 Gigabit |
| Network baseline | 5 Gbps | 5 Gbps |
| Network peak | 10 Gbps | 10 Gbps |
| Storage2 of 8 differ | db.r6g.4xlarge | db.r6gd.4xlarge |
|---|---|---|
| Storage | EBS Only | 1 x 950 NVMe SSD |
| Local disks | – | 1 × 950 GB SSD |
| EBS baseline bandwidth | 4,750 Mbps | 4,750 Mbps |
| EBS max bandwidth | 4,750 Mbps | 4,750 Mbps |
| EBS baseline throughput | 593.75 MB/s | 593.75 MB/s |
| EBS max throughput | 593.75 MB/s | 593.75 MB/s |
| EBS baseline IOPS | 20,000 | 20,000 |
| EBS max IOPS | 20,000 | 20,000 |
| Instance details1 of 4 differ | db.r6g.4xlarge | db.r6gd.4xlarge |
|---|---|---|
| Family | r6g | r6gd |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 64 | 64 |
| Other1 of 1 differ | db.r6g.4xlarge | db.r6gd.4xlarge |
|---|---|---|
| Hardware Basis | r6g.4xlarge | r6gd.4xlarge |
On-demand prices by region
Cheapest for db.r6g.4xlarge first. PostgreSQL, USD per hour.
| Region | db.r6g.4xlarge | db.r6gd.4xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $1.798 | $2.057 | ▲ 14% |
| US East (Ohio)us-east-2 | $1.798 | $2.057 | ▲ 14% |
| US West (Oregon)us-west-2 | $1.798 | $2.057 | ▲ 14% |
| Asia Pacific (Malaysia)ap-southeast-5 | $1.84 | $2.104 | ▲ 14% |
| Asia Pacific (Thailand)ap-southeast-7 | $1.84 | $2.104 | ▲ 14% |
| EU (Stockholm)eu-north-1 | $1.849 | $2.573 | ▲ 39% |
| Mexico (Central)mx-central-1 | $1.888 | $2.16 | ▲ 14% |
| Asia Pacific (Taipei)ap-east-2 | $1.944 | $2.224 | ▲ 14% |
| Canada (Central)ca-central-1 | $1.944 | $2.226 | ▲ 15% |
| EU (Ireland)eu-west-1 | $2.014 | $2.288 | ▲ 14% |
| US West (N. California)us-west-1 | $2.014 | $2.34 | ▲ 16% |
| Europe (Spain)eu-south-2 | $2.016 | $2.288 | ▲ 13% |
| Asia Pacific (Mumbai)ap-south-1 | $2.05 | $2.354 | ▲ 15% |
| EU (Paris)eu-west-3 | $2.112 | $2.42 | ▲ 15% |
| EU (London)eu-west-2 | $2.115 | $2.918 | ▲ 38% |
| Israel (Tel Aviv)il-central-1 | $2.117 | $2.402 | ▲ 13% |
| Asia Pacific (Osaka)ap-northeast-3 | $2.157 | $2.473 | ▲ 15% |
| Asia Pacific (Jakarta)ap-southeast-3 | $2.158 | $2.469 | ▲ 14% |
| Asia Pacific (Seoul)ap-northeast-2 | $2.158 | $3.005 | ▲ 39% |
| Asia Pacific (Singapore)ap-southeast-1 | $2.158 | $2.469 | ▲ 14% |
| Asia Pacific (Sydney)ap-southeast-2 | $2.158 | $2.485 | ▲ 15% |
| Asia Pacific (Tokyo)ap-northeast-1 | $2.158 | $2.469 | ▲ 14% |
| AWS GovCloud (US-East)us-gov-east-1 | $2.158 | $2.472 | ▲ 15% |
| AWS GovCloud (US-West)us-gov-west-1 | $2.158 | $2.472 | ▲ 15% |
| EU (Frankfurt)eu-central-1 | $2.194 | $2.488 | ▲ 13% |
| Asia Pacific (New Zealand)ap-southeast-6 | $2.268 | $4.101 | ▲ 81% |
| Europe (Zurich)eu-central-2 | $2.411 | $2.732 | ▲ 13% |
| South America (Sao Paulo)sa-east-1 | $3.742 | $5.155 | ▲ 38% |
Keep exploring
Each type’s own page, and how it compares with others.
db.r6g.4xlarge
db.r6g.4xlarge prices and specsEvery size in the r6g familyCompare db.r6g.4xlarge with
db.r6gd.4xlarge
db.r6gd.4xlarge prices and specsEvery size in the r6gd familyCompare db.r6gd.4xlarge with
AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.