db.r8g.4xlarge
db.r8g.4xlarge is an AWS RDS size with 16 vCPUs, 128 GiB memory (AWS Graviton4). In US East (N. Virginia) it costs $1.912 per hour on demand ($1,395.76 per month) for PostgreSQL, Single-AZ; a 1-year reserved instance with no upfront costs $1.281 per hour, 33% less. It is sold in 27 regions.
Prices by region
USD per hour, PostgreSQL, Single-AZ. Reserved prices are no upfront, standard. Cheapest on-demand first.
| Region | On-demand | 1-yr reserved | 3-yr reserved | 1-yr savings plan |
|---|---|---|---|---|
| US East (N. Virginia) us-east-1 | $1.912 | $1.281 | $0.8986 | $1.53 |
| US East (Ohio) us-east-2 | $1.912 | $1.281 | $0.8986 | $1.53 |
| US West (Oregon) us-west-2 | $1.912 | $1.281 | $0.8986 | $1.53 |
| Asia Pacific (Malaysia) ap-southeast-5 | $1.952 | $1.308 | $0.9174 | $1.562 |
| EU (Stockholm) eu-north-1 | $1.96 | $1.313 | $0.9212 | $1.568 |
| Mexico (Central) mx-central-1 | $2.008 | $1.345 | $0.9437 | $1.606 |
| Canada (Central) ca-central-1 | $2.066 | $1.384 | $0.971 | $1.653 |
| Europe (Spain) eu-south-2 | $2.144 | $1.436 | $1.008 | $1.715 |
| EU (Ireland) eu-west-1 | $2.144 | $1.436 | $1.008 | $1.715 |
| US West (N. California) us-west-1 | $2.144 | $1.436 | $1.008 | $1.715 |
| Asia Pacific (Mumbai) ap-south-1 | $2.176 | $1.458 | $1.023 | $1.741 |
| Asia Pacific (Hyderabad) ap-south-2 | $2.176 | $1.458 | $1.023 | $1.741 |
| EU (Paris) eu-west-3 | $2.243 | $1.503 | $1.054 | $1.794 |
| EU (London) eu-west-2 | $2.244 | $1.503 | $1.055 | $1.795 |
| Asia Pacific (Melbourne) ap-southeast-4 | $2.294 | $1.537 | $1.078 | $1.835 |
| Asia Pacific (Seoul) ap-northeast-2 | $2.295 | $1.538 | $1.079 | $1.836 |
| Asia Pacific (Tokyo) ap-northeast-1 | $2.296 | $1.538 | $1.079 | $1.837 |
| Asia Pacific (Osaka) ap-northeast-3 | $2.296 | $1.538 | $1.079 | $1.837 |
| Asia Pacific (Singapore) ap-southeast-1 | $2.296 | $1.538 | $1.079 | $1.837 |
| Asia Pacific (Sydney) ap-southeast-2 | $2.296 | $1.538 | $1.079 | $1.837 |
| Asia Pacific (Jakarta) ap-southeast-3 | $2.296 | $1.538 | $1.079 | $1.837 |
| AWS GovCloud (US-East) us-gov-east-1 | $2.296 | – | – | – |
| AWS GovCloud (US-West) us-gov-west-1 | $2.296 | $1.538 | – | $1.837 |
| EU (Frankfurt) eu-central-1 | $2.328 | $1.56 | $1.094 | $1.862 |
| Asia Pacific (Hong Kong) ap-east-1 | $2.525 | $1.692 | $1.187 | $2.02 |
| Europe (Zurich) eu-central-2 | $2.56 | $1.715 | $1.203 | $2.048 |
| South America (Sao Paulo) sa-east-1 | $3.04 | $2.037 | $1.429 | $2.432 |
Prices by engine and deployment in US East (N. Virginia)
| Option | On-demand /hr | 1-yr reserved /hr | 3-yr reserved /hr |
|---|---|---|---|
| PostgreSQL · Single-AZ | $1.912 | $1.281 | $0.8986 |
| PostgreSQL · Multi-AZ | $3.824 | $2.562 | $1.797 |
| MariaDB · Single-AZ | $1.912 | $1.281 | $0.8986 |
| MySQL · Single-AZ | $1.912 | $1.281 | $0.8986 |
| Aurora MySQL · Single-AZ | $2.208 | $1.479 | $1.038 |
| Aurora PostgreSQL · Single-AZ | $2.208 | $1.479 | $1.038 |
| Aurora MySQL I/O Optimized · Single-AZ | $2.872 | – | – |
| Aurora PostgreSQL I/O Optimized · Single-AZ | $2.872 | – | – |
| MariaDB · Multi-AZ | $3.824 | $2.562 | $1.797 |
| MySQL · Multi-AZ | $3.824 | $2.562 | $1.797 |
Specs
| Compute | Value |
|---|---|
| vCPUs | 16 |
| Physical cores | 16 |
| Threads per core | 1 |
| Architecture | arm64 |
| Processor | AWS Graviton4 |
| CPU maker | AWS |
| Sustained clock | 2.8 GHz |
| Burstable | No |
| Memory | Value |
|---|---|
| Memory (GiB) | 128 |
| Networking | Value |
|---|---|
| Network | Up to 15 Gbps |
| Network baseline | 7.5 Gbps |
| Network peak | 15 Gbps |
| Storage | Value |
|---|---|
| Storage | Aurora IO Optimization Mode |
| EBS baseline bandwidth | 5,000 Mbps |
| EBS max bandwidth | 10,000 Mbps |
| EBS baseline throughput | 625 MB/s |
| EBS max throughput | 1,250 MB/s |
| EBS baseline IOPS | 20,000 |
| EBS max IOPS | 40,000 |
| Instance details | Value |
|---|---|
| Instance type | db.r8g.4xlarge |
| Family | r8g |
| Category | Memory optimized |
| Current generation | Yes |
| Normalization factor | 41.6 |
| Other | Value |
|---|---|
| Hardware Basis | r8g.4xlarge |
Compare db.r8g.4xlarge
Compute and memory optimized
With or without local disk and networking
Other processors
Other generations
Other r8g sizes
| Size | vCPUs | Memory (GiB) | On-demand /hr |
|---|---|---|---|
| db.r8g.large | 2 | 16 | $0.239 |
| db.r8g.xlarge | 4 | 32 | $0.478 |
| db.r8g.2xlarge | 8 | 64 | $0.956 |
| db.r8g.4xlarge | 16 | 128 | $1.912 |
| db.r8g.8xlarge | 32 | 256 | $3.824 |
| db.r8g.12xlarge | 48 | 384 | $5.736 |
| db.r8g.16xlarge | 64 | 512 | $7.648 |
| db.r8g.24xlarge | 96 | 768 | $11.472 |
| db.r8g.48xlarge | 192 | 1536 | $22.944 |
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS RDS sizes.