db.r6i.4xlargevsdb.r7i.4xlarge.tpc2.mem4x

db.r6i.4xlarge is 75% cheaper than db.r7i.4xlarge.tpc2.mem4x on demand in US East (N. Virginia), saving $4,380.00 a month.

At a glancedb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4x
On-demand$2.00/hr75% less$8.00/hr
Lowest rate$1.155/hr78% less1-yr reserved, no upfront$5.36/hr1-yr reserved, no upfront

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.

Optiondb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4xdb.r7i.4xlarge.tpc2.mem4x vs db.r6i.4xlarge
On-demandPay by the hour$2.00$8.00▲ 300%
1-yr reservedNo upfront42% off$1.15533% off$5.36▲ 364%
1-yr savings planHourly commitment—20% off$6.40—

Key differences

The biggest lead each one has.

Where db.r6i.4xlarge leads
On-demand price$2.00 vs $8.00 per hour
75% cheaper
Where db.r7i.4xlarge.tpc2.mem4x leads

No clear lead on the measures we compare.

Specs

18 of 18 specs differ. Those are in bold.

Compute6 of 6 differdb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4x
vCPUs16–
Physical cores8–
Threads per core2–
CPU makerIntel–
Sustained clock3.5 GHz–
BurstableNo–
Memory1 of 1 differdb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4x
Memory (GiB)128–
Networking2 of 2 differdb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4x
Network baseline6.25 Gbps–
Network peak12.5 Gbps–
Storage6 of 6 differdb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4x
EBS baseline bandwidth5,000 Mbps–
EBS max bandwidth10,000 Mbps–
EBS baseline throughput625 MB/s–
EBS max throughput1,250 MB/s–
EBS baseline IOPS20,000–
EBS max IOPS40,000–
Instance details2 of 2 differdb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4x
Familyr6ir7i
Normalization factor32128
Other1 of 1 differdb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4x
Hardware Basisr6i.4xlarge–

On-demand prices by region

Cheapest for db.r6i.4xlarge first. PostgreSQL, USD per hour.

Regiondb.r6i.4xlargedb.r7i.4xlarge.tpc2.mem4xDifference
US East (N. Virginia)Used in summaryus-east-1$2.00$8.00▲ 300%
US East (Ohio)us-east-2$2.00$8.00▲ 300%
US West (Oregon)us-west-2$2.00$8.00▲ 300%
Asia Pacific (Malaysia)ap-southeast-5$2.04$8.16▲ 300%
Asia Pacific (Thailand)ap-southeast-7$2.04$8.16▲ 300%
EU (Stockholm)eu-north-1$2.056$8.224▲ 300%
Mexico (Central)mx-central-1$2.104$8.416▲ 300%
Asia Pacific (Taipei)ap-east-2$2.16$8.64▲ 300%
Canada (Central)ca-central-1$2.162$8.64▲ 300%
EU (Ireland)eu-west-1$2.24$8.96▲ 300%
US West (N. California)us-west-1$2.24$8.96▲ 300%
Asia Pacific (Mumbai)ap-south-1$2.28$9.12▲ 300%
EU (London)eu-west-2$2.352$9.408▲ 300%
EU (Milan)eu-south-1$2.352$9.408▲ 300%
EU (Paris)eu-west-3$2.352$9.408▲ 300%
Asia Pacific (Seoul)ap-northeast-2$2.40$9.60▲ 300%
Asia Pacific (Singapore)ap-southeast-1$2.40$9.60▲ 300%
Asia Pacific (Sydney)ap-southeast-2$2.40$9.60▲ 300%
Asia Pacific (Tokyo)ap-northeast-1$2.40$9.60▲ 300%
EU (Frankfurt)eu-central-1$2.44$9.76▲ 300%
AWS GovCloud (US-East)us-gov-east-1$2.80$9.60▲ 243%
AWS GovCloud (US-West)us-gov-west-1$2.80$9.60▲ 243%
South America (Sao Paulo)sa-east-1$4.192$12.72▲ 203%

Keep exploring

Each type’s own page, and how it compares with others.

db.r6i.4xlarger6i family
db.r6i.4xlarge prices and specsEvery size in the r6i family

Compare db.r6i.4xlarge with

db.m6i.4xlargedb.r6g.4xlargedb.r6id.4xlargedb.r6idn.4xlargedb.r6in.4xlargedb.r5.4xlargedb.r5.4xlarge.tpc2.mem2xdb.r5.4xlarge.tpc2.mem3xdb.r5.4xlarge.tpc2.mem4xdb.r7i.4xlargedb.r7i.4xlarge.tpc2.mem2xdb.r7i.4xlarge.tpc2.mem3x
db.r7i.4xlarge.tpc2.mem4xr7i family
db.r7i.4xlarge.tpc2.mem4x prices and specsEvery size in the r7i family

Compare db.r7i.4xlarge.tpc2.mem4x with

db.r7g.4xlargedb.m7i.4xlargedb.r6i.4xlarge.tpc2.mem2xdb.r6i.4xlarge.tpc2.mem3xdb.r6i.4xlarge.tpc2.mem4xdb.r6i.4xlarge.tpc2.mem8xdb.r8i.4xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 33–42% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

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AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.