db.r7g.4xlargevsdb.r7i.4xlarge.tpc2.mem4x

db.r7g.4xlarge is 76% cheaper than db.r7i.4xlarge.tpc2.mem4x on demand in US East (N. Virginia), saving $4,443.51 a month.

At a glancedb.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4x
On-demand$1.913/hr76% less$8.00/hr
Lowest rate$1.473/hr73% 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.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4xdb.r7i.4xlarge.tpc2.mem4x vs db.r7g.4xlarge
On-demandPay by the hour$1.913$8.00▲ 318%
1-yr reservedNo upfront23% off$1.47333% off$5.36▲ 264%
1-yr savings planHourly commitment20% off$1.5320% off$6.40▲ 318%

Key differences

The biggest lead each one has.

Where db.r7g.4xlarge leads
On-demand price$1.913 vs $8.00 per hour
76% cheaper
Where db.r7i.4xlarge.tpc2.mem4x leads

No clear lead on the measures we compare.

Specs

24 of 24 specs differ. Those are in bold.

Compute8 of 8 differdb.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4x
vCPUs16–
Physical cores16–
Threads per core1–
Architecturearm64–
ProcessorAWS Graviton3–
CPU makerAWS–
Sustained clock2.6 GHz–
BurstableNo–
Memory1 of 1 differdb.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4x
Memory (GiB)128–
Networking3 of 3 differdb.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4x
NetworkUp to 15 Gigabit–
Network baseline7.5 Gbps–
Network peak15 Gbps–
Storage7 of 7 differdb.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4x
StorageEBS Only–
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 details4 of 4 differdb.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4x
Familyr7gr7i
CategoryMemory optimized–
Current generationYes–
Normalization factor32128
Other1 of 1 differdb.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4x
Hardware Basisr7g.4xlarge–

On-demand prices by region

Cheapest for db.r7g.4xlarge first. PostgreSQL, USD per hour.

Regiondb.r7g.4xlargedb.r7i.4xlarge.tpc2.mem4xDifference
US East (N. Virginia)Used in summaryus-east-1$1.913$8.00▲ 318%
US East (Ohio)us-east-2$1.913$8.00▲ 318%
US West (Oregon)us-west-2$1.913$8.00▲ 318%
Asia Pacific (Malaysia)ap-southeast-5$1.952$8.16▲ 318%
Asia Pacific (Thailand)ap-southeast-7$1.952$8.16▲ 318%
EU (Stockholm)eu-north-1$1.963$8.224▲ 319%
Mexico (Central)mx-central-1$2.008$8.416▲ 319%
Asia Pacific (Taipei)ap-east-2$2.064$8.64▲ 319%
Canada (Central)ca-central-1$2.066$8.64▲ 318%
US West (N. California)us-west-1$2.142$8.96▲ 318%
EU (Ireland)eu-west-1$2.143$8.96▲ 318%
Asia Pacific (Mumbai)ap-south-1$2.176$9.12▲ 319%
EU (London)eu-west-2$2.244$9.408▲ 319%
EU (Milan)eu-south-1$2.244$9.408▲ 319%
Asia Pacific (Singapore)ap-southeast-1$2.295$9.60▲ 318%
Asia Pacific (Sydney)ap-southeast-2$2.295$9.60▲ 318%
Asia Pacific (Tokyo)ap-northeast-1$2.295$9.60▲ 318%
Asia Pacific (Seoul)ap-northeast-2$2.295$9.60▲ 318%
AWS GovCloud (US-East)us-gov-east-1$2.296$9.60▲ 318%
AWS GovCloud (US-West)us-gov-west-1$2.296$9.60▲ 318%
EU (Frankfurt)eu-central-1$2.329$9.76▲ 319%
EU (Paris)eu-west-3$2.544$9.408▲ 270%
South America (Sao Paulo)sa-east-1$3.042$12.72▲ 318%

Keep exploring

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

db.r7g.4xlargeMemory optimized, r7g family
db.r7g.4xlarge prices and specsEvery size in the r7g family

Compare db.r7g.4xlarge with

db.m7g.4xlargedb.r7i.4xlargedb.r7i.4xlarge.tpc2.mem2xdb.r7i.4xlarge.tpc2.mem3xdb.r6g.4xlargedb.r8g.4xlarge
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.m7i.4xlargedb.r6i.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 23–33% 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.