db.r5.4xlargevsdb.r6i.4xlarge.tpc2.mem3x
db.r5.4xlarge is 64% cheaper than db.r6i.4xlarge.tpc2.mem3x on demand in US East (N. Virginia), saving $2,622.16 a month.
| At a glance | db.r5.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| On-demand | $2.00/hr64% less | $5.592/hr |
| Lowest rate | $1.155/hr71% less1-yr reserved, no upfront | $4.026/hr1-yr reserved, no upfront |
| Size | 16 vCPUs, 128 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.r5.4xlarge | db.r6i.4xlarge.tpc2.mem3x | db.r6i.4xlarge.tpc2.mem3x vs db.r5.4xlarge |
|---|---|---|---|
| On-demandPay by the hour | $2.00 | $5.592 | ▲ 180% |
| 1-yr reservedNo upfront | 42% off$1.155 | 28% off$4.026 | ▲ 249% |
Key differences
The biggest lead each one has.
Where db.r5.4xlarge leads
On-demand price$2.00 vs $5.592 per hour
64% cheaperWhere db.r6i.4xlarge.tpc2.mem3x leads
Memory (GiB)384 vs 128
3× higherSpecs
21 of 24 specs differ. Those are in bold.
| Compute7 of 8 differ | db.r5.4xlarge | 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 | 3.1 GHz | – |
| Burstable | No | – |
| Memory1 of 1 differ | db.r5.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Memory (GiB) | 128 | 384 |
| Networking3 of 3 differ | db.r5.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Network | – | 18.75 Gbps |
| Network baseline | 5 Gbps | – |
| Network peak | 10 Gbps | – |
| Storage6 of 7 differ | db.r5.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Storage | EBS Only | EBS Only |
| EBS baseline bandwidth | 4,750 Mbps | – |
| EBS max bandwidth | 4,750 Mbps | – |
| EBS baseline throughput | 593.75 MB/s | – |
| EBS max throughput | 593.75 MB/s | – |
| EBS baseline IOPS | 18,750 | – |
| EBS max IOPS | 18,750 | – |
| Instance details3 of 4 differ | db.r5.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Family | r5 | r6i |
| Category | Memory optimized | Memory optimized |
| Current generation | – | Yes |
| Normalization factor | 32 | 192 |
| Other1 of 1 differ | db.r5.4xlarge | db.r6i.4xlarge.tpc2.mem3x |
|---|---|---|
| Hardware Basis | r5.4xlarge | – |
On-demand prices by region
Cheapest for db.r5.4xlarge first. PostgreSQL, USD per hour.
| Region | db.r5.4xlarge | db.r6i.4xlarge.tpc2.mem3x | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $2.00 | $5.592 | ▲ 180% |
| US East (Ohio)us-east-2 | $2.00 | $5.592 | ▲ 180% |
| US West (Oregon)us-west-2 | $2.00 | $5.592 | ▲ 180% |
| EU (Stockholm)eu-north-1 | $2.057 | $5.88 | ▲ 186% |
| Canada (Central)ca-central-1 | $2.162 | $6.144 | ▲ 184% |
| EU (Ireland)eu-west-1 | $2.24 | $6.187 | ▲ 176% |
| Europe (Spain)eu-south-2 | $2.24 | $6.192 | ▲ 176% |
| US West (N. California)us-west-1 | $2.24 | $6.163 | ▲ 175% |
| Asia Pacific (Hyderabad)ap-south-2 | $2.28 | $6.312 | ▲ 177% |
| Asia Pacific (Mumbai)ap-south-1 | $2.28 | $6.312 | ▲ 177% |
| Israel (Tel Aviv)il-central-1 | $2.35 | $6.496 | ▲ 176% |
| EU (London)eu-west-2 | $2.352 | $6.528 | ▲ 178% |
| EU (Milan)eu-south-1 | $2.352 | $6.504 | ▲ 177% |
| EU (Paris)eu-west-3 | $2.352 | $6.499 | ▲ 176% |
| Asia Pacific (Jakarta)ap-southeast-3 | $2.40 | $6.648 | ▲ 177% |
| Asia Pacific (Melbourne)ap-southeast-4 | $2.40 | $6.634 | ▲ 176% |
| Asia Pacific (Osaka)ap-northeast-3 | $2.40 | $6.648 | ▲ 177% |
| Asia Pacific (Seoul)ap-northeast-2 | $2.40 | $6.648 | ▲ 177% |
| Asia Pacific (Singapore)ap-southeast-1 | $2.40 | $6.648 | ▲ 177% |
| Asia Pacific (Sydney)ap-southeast-2 | $2.40 | $6.634 | ▲ 176% |
| Asia Pacific (Tokyo)ap-northeast-1 | $2.40 | $6.648 | ▲ 177% |
| AWS GovCloud (US-East)us-gov-east-1 | $2.41 | $6.732 | ▲ 179% |
| AWS GovCloud (US-West)us-gov-west-1 | $2.41 | $6.72 | ▲ 179% |
| EU (Frankfurt)eu-central-1 | $2.44 | $6.768 | ▲ 177% |
| Middle East (Bahrain)me-south-1 | $2.464 | $6.816 | ▲ 177% |
| Middle East (UAE)me-central-1 | $2.464 | $6.816 | ▲ 177% |
| Canada West (Calgary)ca-west-1 | $2.56 | $6.144 | ▲ 140% |
| Asia Pacific (Hong Kong)ap-east-1 | $2.64 | $7.313 | ▲ 177% |
| Africa (Cape Town)af-south-1 | $2.666 | $7.368 | ▲ 176% |
| Europe (Zurich)eu-central-2 | $2.688 | $7.445 | ▲ 177% |
| South America (Sao Paulo)sa-east-1 | $4.188 | $11.664 | ▲ 179% |
Keep exploring
Each type’s own page, and how it compares with others.
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.