db.r5.xlargevsdb.r6i.xlarge.tpc2.mem4x

db.r5.xlarge is 73% cheaper than db.r6i.xlarge.tpc2.mem4x on demand in US East (N. Virginia), saving $995.72 a month.

At a glancedb.r5.xlargedb.r6i.xlarge.tpc2.mem4x
On-demand$0.5/hr73% less$1.864/hr
Lowest rate$0.2888/hr78% less1-yr reserved, no upfront$1.342/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.r5.xlargedb.r6i.xlarge.tpc2.mem4xdb.r6i.xlarge.tpc2.mem4x vs db.r5.xlarge
On-demandPay by the hour$0.5$1.864▲ 273%
1-yr reservedNo upfront42% off$0.288828% off$1.342▲ 365%

Key differences

The biggest lead each one has.

Where db.r5.xlarge leads
On-demand price$0.5 vs $1.864 per hour
73% cheaper
Where db.r6i.xlarge.tpc2.mem4x leads
Memory (GiB)128 vs 32
4× higher

Specs

21 of 24 specs differ. Those are in bold.

Compute7 of 8 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem4x
vCPUs44
Physical cores2–
Threads per core2–
Architecture–x86_64
Processor–Intel Xeon Scalable Ice Lake
CPU makerIntel–
Sustained clock3.1 GHz–
BurstableNo–
Memory1 of 1 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem4x
Memory (GiB)32128
Networking3 of 3 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem4x
Network–Up to 12.5 Gbps
Network baseline1.25 Gbps–
Network peak10 Gbps–
Storage6 of 7 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem4x
StorageEBS OnlyEBS 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 details3 of 4 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem4x
Familyr5r6i
CategoryMemory optimizedMemory optimized
Current generation–Yes
Normalization factor1632
Other1 of 1 differdb.r5.xlargedb.r6i.xlarge.tpc2.mem4x
Hardware Basisr5.xlarge–

On-demand prices by region

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

Regiondb.r5.xlargedb.r6i.xlarge.tpc2.mem4xDifference
US East (N. Virginia)Used in summaryus-east-1$0.5$1.864▲ 273%
US East (Ohio)us-east-2$0.5$1.864▲ 273%
US West (Oregon)us-west-2$0.5$1.864▲ 273%
EU (Stockholm)eu-north-1$0.515$1.96▲ 281%
Canada (Central)ca-central-1$0.5405$2.016▲ 273%
EU (Ireland)eu-west-1$0.56$2.062▲ 268%
Europe (Spain)eu-south-2$0.56$2.064▲ 269%
US West (N. California)us-west-1$0.56$2.054▲ 267%
Asia Pacific (Hyderabad)ap-south-2$0.57$2.104▲ 269%
Asia Pacific (Mumbai)ap-south-1$0.57$2.104▲ 269%
EU (London)eu-west-2$0.588$2.176▲ 270%
EU (Milan)eu-south-1$0.588$2.168▲ 269%
EU (Paris)eu-west-3$0.588$2.166▲ 268%
Israel (Tel Aviv)il-central-1$0.59$2.165▲ 267%
Asia Pacific (Jakarta)ap-southeast-3$0.6$2.216▲ 269%
Asia Pacific (Melbourne)ap-southeast-4$0.6$2.211▲ 268%
Asia Pacific (Osaka)ap-northeast-3$0.6$2.216▲ 269%
Asia Pacific (Seoul)ap-northeast-2$0.6$2.216▲ 269%
Asia Pacific (Singapore)ap-southeast-1$0.6$2.216▲ 269%
Asia Pacific (Sydney)ap-southeast-2$0.6$2.211▲ 268%
Asia Pacific (Tokyo)ap-northeast-1$0.6$2.216▲ 269%
AWS GovCloud (US-East)us-gov-east-1$0.6$2.244▲ 274%
AWS GovCloud (US-West)us-gov-west-1$0.6$2.243▲ 274%
EU (Frankfurt)eu-central-1$0.61$2.256▲ 270%
Middle East (Bahrain)me-south-1$0.616$2.272▲ 269%
Middle East (UAE)me-central-1$0.616$2.272▲ 269%
Canada West (Calgary)ca-west-1$0.64$2.048▲ 220%
Asia Pacific (Hong Kong)ap-east-1$0.66$2.438▲ 269%
Africa (Cape Town)af-south-1$0.666$2.456▲ 269%
Europe (Zurich)eu-central-2$0.672$2.482▲ 269%
South America (Sao Paulo)sa-east-1$1.047$3.888▲ 271%

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.mem2x
db.r6i.xlarge.tpc2.mem4xMemory optimized, r6i family
db.r6i.xlarge.tpc2.mem4x prices and specsEvery size in the r6i family

Compare db.r6i.xlarge.tpc2.mem4x 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.