db.m6i.4xlargevsdb.r6i.4xlarge.tpc2.mem3x
db.m6i.4xlarge is 75% cheaper than db.r6i.4xlarge.tpc2.mem3x on demand in US East (N. Virginia), saving $3,042.64 a month.
| At a glance | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| On-demand | $1.424/hr75% less | $5.592/hr |
| Lowest rate | $0.912/hr77% less1-yr reserved, no upfront | $4.026/hr1-yr reserved, no upfront |
| Size | 16 vCPUs, 64 GiB | 16 vCPUs, 384 GiB |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.
| Option | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x | db.r6i.4xlarge.tpc2.mem3x vs db.m6i.4xlarge |
|---|---|---|---|
| On-demandPay by the hour | $1.424 | $5.592 | ▲ 293% |
| 1-yr reservedNo upfront | 36% off$0.912 | 28% off$4.026 | ▲ 341% |
Key differences
The biggest lead each one has.
Where db.m6i.4xlarge leads
On-demand price$1.424 vs $5.592 per hour
75% cheaperWhere db.r6i.4xlarge.tpc2.mem3x leads
Memory (GiB)384 vs 64
6× higherSpecs
22 of 24 specs differ. Those are in bold.
| Compute7 of 8 differ | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| vCPUs | 16 | 16 |
| Physical cores | 8 | – |
| Threads per core | 2 | – |
| Architecture | – | x86_64 |
| Processor | – | Intel Xeon Scalable Ice Lake |
| CPU maker | Intel | – |
| Sustained clock | 3.5 GHz | – |
| Burstable | No | – |
| Memory1 of 1 differ | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Memory (GiB) | 64 | 384 |
| Networking3 of 3 differ | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Network | – | 18.75 Gbps |
| Network baseline | 6.25 Gbps | – |
| Network peak | 12.5 Gbps | – |
| Storage6 of 7 differ | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Storage | EBS Only | EBS Only |
| 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 details4 of 4 differ | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Family | m6i | r6i |
| Category | General purpose | Memory optimized |
| Current generation | – | Yes |
| Normalization factor | – | 192 |
| Other1 of 1 differ | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Hardware Basis | m6i.4xlarge | – |
On-demand prices by region
Cheapest for db.m6i.4xlarge first. PostgreSQL, USD per hour.
| Region | db.m6i.4xlarge | db.r6i.4xlarge.tpc2.mem3x | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $1.424 | $5.592 | ▲ 293% |
| US East (Ohio)us-east-2 | $1.424 | $5.592 | ▲ 293% |
| US West (Oregon)us-west-2 | $1.424 | $5.592 | ▲ 293% |
| EU (Stockholm)eu-north-1 | $1.496 | $5.88 | ▲ 293% |
| Canada (Central)ca-central-1 | $1.568 | $6.144 | ▲ 292% |
| Canada West (Calgary)ca-west-1 | $1.568 | $6.144 | ▲ 292% |
| EU (Ireland)eu-west-1 | $1.576 | $6.187 | ▲ 293% |
| Europe (Spain)eu-south-2 | $1.576 | $6.192 | ▲ 293% |
| US West (N. California)us-west-1 | $1.624 | $6.163 | ▲ 279% |
| EU (London)eu-west-2 | $1.648 | $6.528 | ▲ 296% |
| EU (Paris)eu-west-3 | $1.648 | $6.499 | ▲ 294% |
| EU (Milan)eu-south-1 | $1.654 | $6.504 | ▲ 293% |
| Israel (Tel Aviv)il-central-1 | $1.655 | $6.496 | ▲ 293% |
| Middle East (UAE)me-central-1 | $1.664 | $6.816 | ▲ 310% |
| Asia Pacific (Malaysia)ap-southeast-5 | $1.68 | $6.753 | ▲ 302% |
| AWS GovCloud (US-East)us-gov-east-1 | $1.68 | $6.732 | ▲ 301% |
| AWS GovCloud (US-West)us-gov-west-1 | $1.68 | $6.72 | ▲ 300% |
| EU (Frankfurt)eu-central-1 | $1.696 | $6.768 | ▲ 299% |
| Middle East (Bahrain)me-south-1 | $1.736 | $6.816 | ▲ 293% |
| Europe (Zurich)eu-central-2 | $1.864 | $7.445 | ▲ 299% |
| South America (Sao Paulo)sa-east-1 | $1.864 | $11.664 | ▲ 526% |
| Africa (Cape Town)af-south-1 | $1.872 | $7.368 | ▲ 294% |
| Asia Pacific (Jakarta)ap-southeast-3 | $1.976 | $6.648 | ▲ 236% |
| Asia Pacific (Seoul)ap-northeast-2 | $1.976 | $6.648 | ▲ 236% |
| Asia Pacific (Singapore)ap-southeast-1 | $1.976 | $6.648 | ▲ 236% |
| Asia Pacific (Sydney)ap-southeast-2 | $1.976 | $6.634 | ▲ 236% |
| Asia Pacific (Tokyo)ap-northeast-1 | $1.976 | $6.648 | ▲ 236% |
| Asia Pacific (Hyderabad)ap-south-2 | $2.024 | $6.312 | ▲ 212% |
| Asia Pacific (Mumbai)ap-south-1 | $2.024 | $6.312 | ▲ 212% |
| Asia Pacific (Osaka)ap-northeast-3 | $2.072 | $6.648 | ▲ 221% |
| Asia Pacific (Hong Kong)ap-east-1 | $2.174 | $7.313 | ▲ 236% |
Keep exploring
Each type’s own page, and how it compares with others.
db.m6i.4xlarge
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db.r6i.4xlarge.tpc2.mem3x
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AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.