db.m8a.largevsdb.m8g.large
db.m8g.large is 22% cheaper than db.m8a.large on demand in US East (N. Virginia), saving $34.24 a month. They use different processor architectures (x86_64 and arm64), so software built for one may need rebuilding to run on the other.
| At a glance | db.m8a.large | db.m8g.large |
|---|---|---|
| On-demand | $0.2149/hr | $0.168/hr22% less |
| Lowest rate | $0.1719/hr1-yr savings plan, hourly commitment | $0.1344/hr22% less1-yr savings plan, hourly commitment |
| Size | 2 vCPUs, 8 GiB | 2 vCPUs, 8 GiB |
| Architecture | x86_64 | 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.m8a.large | db.m8g.large | db.m8g.large vs db.m8a.large |
|---|---|---|---|
| On-demandPay by the hour | $0.2149 | $0.168 | ▼ 22% |
| 1-yr reservedNo upfront | — | 33% off$0.113 | — |
| 3-yr reservedNo upfront | — | 53% off$0.0789 | — |
| 1-yr savings planHourly commitment | 20% off$0.1719 | 20% off$0.1344 | ▼ 22% |
Key differences
The biggest lead each one has.
Where db.m8a.large leads
Sustained clock4.5 GHz vs 2.8 GHz
61% higherEBS baseline bandwidth650 Mbps vs 630 Mbps
3% higherWhere db.m8g.large leads
On-demand price$0.168 vs $0.2149 per hour
22% cheaperSpecs
13 of 24 specs differ. Those are in bold.
| Compute4 of 8 differ | db.m8a.large | db.m8g.large |
|---|---|---|
| vCPUs | 2 | 2 |
| Physical cores | 2 | 2 |
| Threads per core | 1 | 1 |
| Architecture | x86_64 | arm64 |
| Processor | 5th Generation AMD EPYC | – |
| CPU maker | AMD | AWS |
| Sustained clock | 4.5 GHz | 2.8 GHz |
| Burstable | No | No |
| MemoryAll 1 match | db.m8a.large | db.m8g.large |
|---|---|---|
| Memory (GiB) | 8 | 8 |
| Networking1 of 3 differ | db.m8a.large | db.m8g.large |
|---|---|---|
| Network | Up to 12500 Mbps | – |
| Network baseline | 0.937 Gbps | 0.937 Gbps |
| Network peak | 12.5 Gbps | 12.5 Gbps |
| Storage3 of 7 differ | db.m8a.large | db.m8g.large |
|---|---|---|
| Storage | EBS Only | – |
| EBS baseline bandwidth | 650 Mbps | 630 Mbps |
| EBS max bandwidth | 10,000 Mbps | 10,000 Mbps |
| EBS baseline throughput | 81.25 MB/s | 78.75 MB/s |
| EBS max throughput | 1,250 MB/s | 1,250 MB/s |
| EBS baseline IOPS | 3,600 | 3,600 |
| EBS max IOPS | 40,000 | 40,000 |
| Instance details4 of 4 differ | db.m8a.large | db.m8g.large |
|---|---|---|
| Family | m8a | m8g |
| Category | General purpose | – |
| Current generation | Yes | – |
| Normalization factor | – | 4 |
| Other1 of 1 differ | db.m8a.large | db.m8g.large |
|---|---|---|
| Hardware Basis | m8a.large | m8g.large |
On-demand prices by region
Cheapest for db.m8a.large first. PostgreSQL, USD per hour.
| Region | db.m8a.large | db.m8g.large | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $0.2149 | $0.168 | ▼ 22% |
| US East (Ohio)us-east-2 | $0.2149 | $0.168 | ▼ 22% |
| US West (Oregon)us-west-2 | $0.2149 | $0.168 | ▼ 22% |
| EU (Ireland)eu-west-1 | $0.2379 | $0.186 | ▼ 22% |
| Europe (Spain)eu-south-2 | $0.2379 | $0.186 | ▼ 22% |
| EU (Frankfurt)eu-central-1 | $0.256 | $0.2 | ▼ 22% |
| Asia Pacific (Tokyo)ap-northeast-1 | $0.2983 | $0.234 | ▼ 22% |
| Asia Pacific (Hyderabad)ap-south-2 | $0.3056 | $0.24 | ▼ 21% |
| Asia Pacific (Mumbai)ap-south-1 | $0.3056 | $0.24 | ▼ 21% |
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.