db.r5.xlargevsdb.r6i.xlarge.tpc2.mem2x

db.r5.xlarge is 46% cheaper than db.r6i.xlarge.tpc2.mem2x on demand in US East (N. Virginia), saving $315.36 a month.

At a glancedb.r5.xlargedb.r6i.xlarge.tpc2.mem2x
On-demand$0.5/hr46% less$0.932/hr
Lowest rate$0.2888/hr57% less1-yr reserved, no upfront$0.671/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.r5.xlargedb.r6i.xlarge.tpc2.mem2xdb.r6i.xlarge.tpc2.mem2x vs db.r5.xlarge
On-demandPay by the hour$0.5$0.932▲ 86%
1-yr reservedNo upfront42% off$0.288828% off$0.671▲ 132%

Key differences

The biggest lead each one has.

Where db.r5.xlarge leads
On-demand price$0.5 vs $0.932 per hour
46% cheaper
Where db.r6i.xlarge.tpc2.mem2x leads

No clear lead on the measures we compare.

Specs

19 of 20 specs differ. Those are in bold.

Compute6 of 6 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem2x
vCPUs4–
Physical cores2–
Threads per core2–
CPU makerIntel–
Sustained clock3.1 GHz–
BurstableNo–
Memory1 of 1 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem2x
Memory (GiB)32–
Networking2 of 2 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem2x
Network baseline1.25 Gbps–
Network peak10 Gbps–
Storage7 of 7 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem2x
StorageEBS Only–
EBS baseline bandwidth1,150 Mbps–
EBS max bandwidth4,750 Mbps–
EBS baseline throughput143.75 MB/s–
EBS max throughput593.75 MB/s–
EBS baseline IOPS6,000–
EBS max IOPS18,750–
Instance details2 of 3 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem2x
Familyr5r6i
CategoryMemory optimized–
Normalization factor1616
Other1 of 1 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem2x
Hardware Basisr5.xlarge–

On-demand prices by region

Cheapest for db.r5.xlarge first. PostgreSQL, USD per hour.

Regiondb.r5.xlargedb.r6i.xlarge.tpc2.mem2xDifference
US East (N. Virginia)Used in summaryus-east-1$0.5$0.932▲ 86%
US East (Ohio)us-east-2$0.5$0.932▲ 86%
US West (Oregon)us-west-2$0.5$0.932▲ 86%
EU (Stockholm)eu-north-1$0.515$0.98▲ 90%
Canada (Central)ca-central-1$0.5405$1.024▲ 89%
EU (Ireland)eu-west-1$0.56$1.031▲ 84%
Europe (Spain)eu-south-2$0.56$1.032▲ 84%
US West (N. California)us-west-1$0.56$1.027▲ 83%
Asia Pacific (Hyderabad)ap-south-2$0.57$1.052▲ 85%
Asia Pacific (Mumbai)ap-south-1$0.57$1.052▲ 85%
EU (London)eu-west-2$0.588$1.088▲ 85%
EU (Milan)eu-south-1$0.588$1.084▲ 84%
EU (Paris)eu-west-3$0.588$1.083▲ 84%
Israel (Tel Aviv)il-central-1$0.59$1.083▲ 84%
Asia Pacific (Jakarta)ap-southeast-3$0.6$1.108▲ 85%
Asia Pacific (Melbourne)ap-southeast-4$0.6$1.106▲ 84%
Asia Pacific (Osaka)ap-northeast-3$0.6$1.108▲ 85%
Asia Pacific (Seoul)ap-northeast-2$0.6$1.108▲ 85%
Asia Pacific (Singapore)ap-southeast-1$0.6$1.108▲ 85%
Asia Pacific (Sydney)ap-southeast-2$0.6$1.106▲ 84%
Asia Pacific (Tokyo)ap-northeast-1$0.6$1.108▲ 85%
AWS GovCloud (US-East)us-gov-east-1$0.6$1.122▲ 87%
AWS GovCloud (US-West)us-gov-west-1$0.6$1.122▲ 87%
EU (Frankfurt)eu-central-1$0.61$1.128▲ 85%
Middle East (Bahrain)me-south-1$0.616$1.136▲ 84%
Middle East (UAE)me-central-1$0.616$1.136▲ 84%
Canada West (Calgary)ca-west-1$0.64$1.024▲ 60%
Asia Pacific (Hong Kong)ap-east-1$0.66$1.219▲ 85%
Africa (Cape Town)af-south-1$0.666$1.228▲ 84%
Europe (Zurich)eu-central-2$0.672$1.241▲ 85%
South America (Sao Paulo)sa-east-1$1.047$1.944▲ 86%

Keep exploring

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

db.r5.xlargeMemory optimized, r5 family
db.r5.xlarge prices and specsEvery size in the r5 family

Compare db.r5.xlarge with

db.m5.xlargedb.r5d.xlargedb.r5b.xlargedb.r5b.xlarge.tpc2.mem2xdb.r5b.xlarge.tpc2.mem4xdb.r4.xlargedb.r6i.xlargedb.r6i.xlarge.tpc2.mem4x
db.r6i.xlarge.tpc2.mem2xr6i family
db.r6i.xlarge.tpc2.mem2x prices and specsEvery size in the r6i family

Compare db.r6i.xlarge.tpc2.mem2x with

db.m6i.xlargedb.r6g.xlargedb.r6id.xlargedb.r6idn.xlargedb.r6in.xlargedb.r5.xlarge.tpc2.mem2xdb.r5.xlarge.tpc2.mem4xdb.r7i.xlargedb.r7i.xlarge.tpc2.mem2xdb.r7i.xlarge.tpc2.mem4x

Pay the committed rate, with commitment protection

The best committed rate on these two is 28–42% 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.