db.r5.largevsdb.r6i.large

db.r5.large and db.r6i.large cost the same on demand in US East (N. Virginia), $0.25 per hour.

At a glancedb.r5.largedb.r6i.large
On-demand$0.25/hr$0.25/hr
Lowest rate$0.1444/hr1-yr reserved, no upfront$0.1444/hr1-yr reserved, no upfront
Size2 vCPUs, 16 GiB2 vCPUs, 16 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.largedb.r6i.largedb.r6i.large vs db.r5.large
On-demandPay by the hour$0.25$0.25Same
1-yr reservedNo upfront42% off$0.144442% off$0.1444Same

Key differences

The biggest lead each one has.

Where db.r5.large leads

No clear lead on the measures we compare.

Where db.r6i.large leads
EBS max IOPS40,000 vs 18,750
2.1× higher
Network peak12.5 Gbps vs 10 Gbps
25% higher
Sustained clock3.5 GHz vs 3.1 GHz
13% higher

Specs

8 of 20 specs differ. Those are in bold.

Compute1 of 6 differdb.r5.largedb.r6i.large
vCPUs22
Physical cores11
Threads per core22
CPU makerIntelIntel
Sustained clock3.1 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.r5.largedb.r6i.large
Memory (GiB)1616
Networking2 of 2 differdb.r5.largedb.r6i.large
Network baseline0.75 Gbps0.781 Gbps
Network peak10 Gbps12.5 Gbps
Storage3 of 7 differdb.r5.largedb.r6i.large
StorageEBS OnlyEBS Only
EBS baseline bandwidth650 Mbps650 Mbps
EBS max bandwidth4,750 Mbps10,000 Mbps
EBS baseline throughput81.25 MB/s81.25 MB/s
EBS max throughput593.75 MB/s1,250 MB/s
EBS baseline IOPS3,6003,600
EBS max IOPS18,75040,000
Instance details1 of 3 differdb.r5.largedb.r6i.large
Familyr5r6i
CategoryMemory optimizedMemory optimized
Normalization factor88
Other1 of 1 differdb.r5.largedb.r6i.large
Hardware Basisr5.larger6i.large

On-demand prices by region

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

Regiondb.r5.largedb.r6i.largeDifference
US East (N. Virginia)Used in summaryus-east-1$0.25$0.25Same
US East (Ohio)us-east-2$0.25$0.25Same
US West (Oregon)us-west-2$0.25$0.25Same
EU (Stockholm)eu-north-1$0.257$0.257Same
Canada (Central)ca-central-1$0.2703$0.27Same
EU (Ireland)eu-west-1$0.28$0.28Same
Europe (Spain)eu-south-2$0.28$0.416▲ 49%
US West (N. California)us-west-1$0.28$0.28Same
Asia Pacific (Hyderabad)ap-south-2$0.285$0.429▲ 51%
Asia Pacific (Mumbai)ap-south-1$0.285$0.285Same
EU (London)eu-west-2$0.294$0.294Same
EU (Milan)eu-south-1$0.294$0.294Same
EU (Paris)eu-west-3$0.294$0.294Same
Israel (Tel Aviv)il-central-1$0.294$0.294Same
Asia Pacific (Jakarta)ap-southeast-3$0.3$0.455▲ 52%
Asia Pacific (Melbourne)ap-southeast-4$0.3$0.455▲ 52%
Asia Pacific (Osaka)ap-northeast-3$0.3$0.3Same
Asia Pacific (Seoul)ap-northeast-2$0.3$0.3Same
Asia Pacific (Singapore)ap-southeast-1$0.3$0.3Same
Asia Pacific (Sydney)ap-southeast-2$0.3$0.3Same
Asia Pacific (Tokyo)ap-northeast-1$0.3$0.3Same
AWS GovCloud (US-East)us-gov-east-1$0.3$0.35▲ 17%
AWS GovCloud (US-West)us-gov-west-1$0.3$0.35▲ 17%
EU (Frankfurt)eu-central-1$0.305$0.305Same
Middle East (Bahrain)me-south-1$0.308$0.308Same
Middle East (UAE)me-central-1$0.308$0.458▲ 49%
Canada West (Calgary)ca-west-1$0.32$0.27▼ 16%
Asia Pacific (Hong Kong)ap-east-1$0.33$0.33Same
Africa (Cape Town)af-south-1$0.333$0.333Same
Europe (Zurich)eu-central-2$0.336$0.501▲ 49%
South America (Sao Paulo)sa-east-1$0.524$0.524Same

Keep exploring

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

db.r5.largeMemory optimized, r5 family
db.r5.large prices and specsEvery size in the r5 family

Compare db.r5.large with

db.m5.largedb.r5d.largedb.r5b.largedb.r5b.large.tpc1.mem2xdb.r4.largedb.r6i.large.tpc1.mem2x
db.r6i.largeMemory optimized, r6i family
db.r6i.large prices and specsEvery size in the r6i family

Compare db.r6i.large with

db.m6i.largedb.r6g.largedb.r6id.largedb.r6idn.largedb.r6in.largedb.r5.large.tpc1.mem2xdb.r7i.large

Pay the committed rate, with commitment protection

The best committed rate on these two is 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.