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

db.r6i.xlarge is 75% cheaper than db.r7i.xlarge.tpc2.mem4x on demand in US East (N. Virginia), saving $1,095.00 a month.

At a glancedb.r6i.xlargedb.r7i.xlarge.tpc2.mem4x
On-demand$0.5/hr75% less$2.00/hr
Lowest rate$0.2888/hr78% less1-yr reserved, no upfront$1.34/hr1-yr reserved, no upfront
Size4 vCPUs, 32 GiB4 vCPUs, 128 GiB

Prices in US East (N. Virginia)

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

Optiondb.r6i.xlargedb.r7i.xlarge.tpc2.mem4xdb.r7i.xlarge.tpc2.mem4x vs db.r6i.xlarge
On-demandPay by the hour$0.5$2.00▲ 300%
1-yr reservedNo upfront42% off$0.288833% off$1.34▲ 364%
1-yr savings planHourly commitment—20% off$1.60—

Key differences

The biggest lead each one has.

Where db.r6i.xlarge leads
On-demand price$0.5 vs $2.00 per hour
75% cheaper
Where db.r7i.xlarge.tpc2.mem4x leads
Memory (GiB)128 vs 32
4× higher

Specs

19 of 22 specs differ. Those are in bold.

Compute5 of 6 differdb.r6i.xlargedb.r7i.xlarge.tpc2.mem4x
vCPUs44
Physical cores2–
Threads per core2–
CPU makerIntel–
Sustained clock3.5 GHz–
BurstableNo–
Memory1 of 1 differdb.r6i.xlargedb.r7i.xlarge.tpc2.mem4x
Memory (GiB)32128
Networking3 of 3 differdb.r6i.xlargedb.r7i.xlarge.tpc2.mem4x
Network–Up to 12.5 Gbps
Network baseline1.562 Gbps–
Network peak12.5 Gbps–
Storage6 of 7 differdb.r6i.xlargedb.r7i.xlarge.tpc2.mem4x
StorageEBS OnlyEBS Only
EBS baseline bandwidth1,250 Mbps–
EBS max bandwidth10,000 Mbps–
EBS baseline throughput156.25 MB/s–
EBS max throughput1,250 MB/s–
EBS baseline IOPS6,000–
EBS max IOPS40,000–
Instance details3 of 4 differdb.r6i.xlargedb.r7i.xlarge.tpc2.mem4x
Familyr6ir7i
CategoryMemory optimizedMemory optimized
Current generation–Yes
Normalization factor–64
Other1 of 1 differdb.r6i.xlargedb.r7i.xlarge.tpc2.mem4x
Hardware Basisr6i.xlarge–

On-demand prices by region

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

Regiondb.r6i.xlargedb.r7i.xlarge.tpc2.mem4xDifference
US East (N. Virginia)Used in summaryus-east-1$0.5$2.00▲ 300%
US East (Ohio)us-east-2$0.5$2.00▲ 300%
US West (Oregon)us-west-2$0.5$2.00▲ 300%
Asia Pacific (Malaysia)ap-southeast-5$0.51$2.04▲ 300%
Asia Pacific (Thailand)ap-southeast-7$0.51$2.04▲ 300%
EU (Stockholm)eu-north-1$0.514$2.056▲ 300%
Mexico (Central)mx-central-1$0.526$2.104▲ 300%
Asia Pacific (Taipei)ap-east-2$0.54$2.16▲ 300%
Canada (Central)ca-central-1$0.541$2.16▲ 299%
EU (Ireland)eu-west-1$0.56$2.24▲ 300%
US West (N. California)us-west-1$0.56$2.24▲ 300%
Asia Pacific (Mumbai)ap-south-1$0.57$2.28▲ 300%
EU (London)eu-west-2$0.588$2.352▲ 300%
EU (Milan)eu-south-1$0.588$2.352▲ 300%
EU (Paris)eu-west-3$0.588$2.352▲ 300%
Asia Pacific (Seoul)ap-northeast-2$0.6$2.40▲ 300%
Asia Pacific (Singapore)ap-southeast-1$0.6$2.40▲ 300%
Asia Pacific (Sydney)ap-southeast-2$0.6$2.40▲ 300%
Asia Pacific (Tokyo)ap-northeast-1$0.6$2.40▲ 300%
EU (Frankfurt)eu-central-1$0.61$2.44▲ 300%
AWS GovCloud (US-East)us-gov-east-1$0.7$2.40▲ 243%
AWS GovCloud (US-West)us-gov-west-1$0.7$2.40▲ 243%
South America (Sao Paulo)sa-east-1$1.048$3.18▲ 203%

Keep exploring

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

db.r6i.xlargeMemory optimized, r6i family
db.r6i.xlarge prices and specsEvery size in the r6i family

Compare db.r6i.xlarge with

db.m6i.xlargedb.r6g.xlargedb.r6id.xlargedb.r6idn.xlargedb.r6in.xlargedb.r5.xlargedb.r5.xlarge.tpc2.mem2xdb.r5.xlarge.tpc2.mem4xdb.r7i.xlargedb.r7i.xlarge.tpc2.mem2x
db.r7i.xlarge.tpc2.mem4xMemory optimized, r7i family
db.r7i.xlarge.tpc2.mem4x prices and specsEvery size in the r7i family

Compare db.r7i.xlarge.tpc2.mem4x with

db.r7g.xlargedb.m7i.xlargedb.r6i.xlarge.tpc2.mem2xdb.r6i.xlarge.tpc2.mem4xdb.r8i.xlarge

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.