db.r6i.8xlargevsdb.r7i.8xlarge.tpc2.mem3x
db.r6i.8xlarge is 67% cheaper than db.r7i.8xlarge.tpc2.mem3x on demand in US East (N. Virginia), saving $5,840.00 a month.
| At a glance | db.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x |
|---|---|---|
| On-demand | $4.00/hr67% less | $12.00/hr |
| Lowest rate | $2.31/hr71% less1-yr reserved, no upfront | $8.04/hr1-yr reserved, no upfront |
| Size | 32 vCPUs, 256 GiB | 32 vCPUs, 768 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.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x | db.r7i.8xlarge.tpc2.mem3x vs db.r6i.8xlarge |
|---|---|---|---|
| On-demandPay by the hour | $4.00 | $12.00 | ▲ 200% |
| 1-yr reservedNo upfront | 42% off$2.31 | 33% off$8.04 | ▲ 248% |
| 1-yr savings planHourly commitment | — | 20% off$9.60 | — |
Key differences
The biggest lead each one has.
Where db.r6i.8xlarge leads
On-demand price$4.00 vs $12.00 per hour
67% cheaperWhere db.r7i.8xlarge.tpc2.mem3x leads
Memory (GiB)768 vs 256
3× higherSpecs
20 of 24 specs differ. Those are in bold.
| Compute7 of 8 differ | db.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x |
|---|---|---|
| vCPUs | 32 | 32 |
| Physical cores | 16 | – |
| 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.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x |
|---|---|---|
| Memory (GiB) | 256 | 768 |
| Networking3 of 3 differ | db.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x |
|---|---|---|
| Network | 12.5 Gbps | 37.5 Gbps |
| Network baseline | 12.5 Gbps | – |
| Network peak | 12.5 Gbps | – |
| Storage6 of 7 differ | db.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x |
|---|---|---|
| Storage | EBS Only | EBS Only |
| EBS baseline bandwidth | 10,000 Mbps | – |
| EBS max bandwidth | 10,000 Mbps | – |
| EBS baseline throughput | 1,250 MB/s | – |
| EBS max throughput | 1,250 MB/s | – |
| EBS baseline IOPS | 40,000 | – |
| EBS max IOPS | 40,000 | – |
| Instance details2 of 4 differ | db.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x |
|---|---|---|
| Family | r6i | r7i |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | – | 384 |
| Other1 of 1 differ | db.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x |
|---|---|---|
| Hardware Basis | r6i.8xlarge | – |
On-demand prices by region
Cheapest for db.r6i.8xlarge first. PostgreSQL, USD per hour.
| Region | db.r6i.8xlarge | db.r7i.8xlarge.tpc2.mem3x | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $4.00 | $12.00 | ▲ 200% |
| US East (Ohio)us-east-2 | $4.00 | $12.00 | ▲ 200% |
| US West (Oregon)us-west-2 | $4.00 | $12.00 | ▲ 200% |
| Asia Pacific (Malaysia)ap-southeast-5 | $4.08 | $12.24 | ▲ 200% |
| Asia Pacific (Thailand)ap-southeast-7 | $4.08 | $12.24 | ▲ 200% |
| EU (Stockholm)eu-north-1 | $4.112 | $12.336 | ▲ 200% |
| Mexico (Central)mx-central-1 | $4.208 | $12.624 | ▲ 200% |
| Asia Pacific (Taipei)ap-east-2 | $4.32 | $12.96 | ▲ 200% |
| Canada (Central)ca-central-1 | $4.325 | $12.96 | ▲ 200% |
| EU (Ireland)eu-west-1 | $4.48 | $13.44 | ▲ 200% |
| US West (N. California)us-west-1 | $4.48 | $13.44 | ▲ 200% |
| Asia Pacific (Mumbai)ap-south-1 | $4.56 | $13.68 | ▲ 200% |
| EU (London)eu-west-2 | $4.704 | $14.112 | ▲ 200% |
| EU (Milan)eu-south-1 | $4.704 | $14.112 | ▲ 200% |
| EU (Paris)eu-west-3 | $4.704 | $14.112 | ▲ 200% |
| Asia Pacific (Seoul)ap-northeast-2 | $4.80 | $14.40 | ▲ 200% |
| Asia Pacific (Singapore)ap-southeast-1 | $4.80 | $14.40 | ▲ 200% |
| Asia Pacific (Sydney)ap-southeast-2 | $4.80 | $14.40 | ▲ 200% |
| Asia Pacific (Tokyo)ap-northeast-1 | $4.80 | $14.40 | ▲ 200% |
| EU (Frankfurt)eu-central-1 | $4.88 | $14.64 | ▲ 200% |
| AWS GovCloud (US-East)us-gov-east-1 | $5.60 | $14.40 | ▲ 157% |
| AWS GovCloud (US-West)us-gov-west-1 | $5.60 | $14.40 | ▲ 157% |
| South America (Sao Paulo)sa-east-1 | $8.384 | $19.08 | ▲ 128% |
Keep exploring
Each type’s own page, and how it compares with others.
db.r6i.8xlarge
db.r6i.8xlarge prices and specsEvery size in the r6i familyCompare db.r6i.8xlarge with
db.r7i.8xlarge.tpc2.mem3x
db.r7i.8xlarge.tpc2.mem3x prices and specsEvery size in the r7i familyCompare db.r7i.8xlarge.tpc2.mem3x with
AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.