db.r5.xlargevsdb.r5b.xlarge.tpc2.mem2x

db.r5.xlarge is 55% cheaper than db.r5b.xlarge.tpc2.mem2x on demand in US East (N. Virginia), saving $440.19 a month.

At a glancedb.r5.xlargedb.r5b.xlarge.tpc2.mem2x
On-demand$0.5/hr55% less$1.103/hr

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.r5b.xlarge.tpc2.mem2xdb.r5b.xlarge.tpc2.mem2x vs db.r5.xlarge
On-demandPay by the hour$0.5$1.103▲ 121%
1-yr reservedNo upfront42% off$0.2888——

Key differences

The biggest lead each one has.

Where db.r5.xlarge leads
On-demand price$0.5 vs $1.103 per hour
55% cheaper
Where db.r5b.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.r5b.xlarge.tpc2.mem2x
vCPUs4–
Physical cores2–
Threads per core2–
CPU makerIntel–
Sustained clock3.1 GHz–
BurstableNo–
Memory1 of 1 differdb.r5.xlargedb.r5b.xlarge.tpc2.mem2x
Memory (GiB)32–
Networking2 of 2 differdb.r5.xlargedb.r5b.xlarge.tpc2.mem2x
Network baseline1.25 Gbps–
Network peak10 Gbps–
Storage7 of 7 differdb.r5.xlargedb.r5b.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.r5b.xlarge.tpc2.mem2x
Familyr5r5b
CategoryMemory optimized–
Normalization factor1616
Other1 of 1 differdb.r5.xlargedb.r5b.xlarge.tpc2.mem2x
Hardware Basisr5.xlarge–

On-demand prices by region

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

Regiondb.r5.xlargedb.r5b.xlarge.tpc2.mem2xDifference
US East (N. Virginia)Used in summaryus-east-1$0.5$1.103▲ 121%
US East (Ohio)us-east-2$0.5$1.103▲ 121%
US West (Oregon)us-west-2$0.5$1.103▲ 121%
EU (Stockholm)eu-north-1$0.515$1.169▲ 127%
Canada (Central)ca-central-1$0.5405$1.206▲ 123%
EU (Ireland)eu-west-1$0.56$1.236▲ 121%
EU (London)eu-west-2$0.588$1.295▲ 120%
EU (Milan)eu-south-1$0.588$1.295▲ 120%
Asia Pacific (Seoul)ap-northeast-2$0.6$1.317▲ 120%
Asia Pacific (Singapore)ap-southeast-1$0.6$1.317▲ 120%
Asia Pacific (Sydney)ap-southeast-2$0.6$1.339▲ 123%
Asia Pacific (Tokyo)ap-northeast-1$0.6$1.339▲ 123%
EU (Frankfurt)eu-central-1$0.61$1.317▲ 116%
South America (Sao Paulo)sa-east-1$1.047$1.754▲ 68%

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.mem4xdb.r4.xlargedb.r6i.xlargedb.r6i.xlarge.tpc2.mem2xdb.r6i.xlarge.tpc2.mem4x
db.r5b.xlarge.tpc2.mem2xr5b family
db.r5b.xlarge.tpc2.mem2x prices and specsEvery size in the r5b family

Compare db.r5b.xlarge.tpc2.mem2x with

db.r5.xlarge.tpc2.mem2xdb.r5.xlarge.tpc2.mem4x

Pay the committed rate, with commitment protection

The best committed rate on these two is 0–42% 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.