db.r7i.24xlargevsdb.r8i.24xlarge

db.r7i.24xlarge is 5% cheaper than db.r8i.24xlarge on demand in US East (N. Virginia), saving $438.00 a month.

At a glancedb.r7i.24xlargedb.r8i.24xlarge
On-demand$12.00/hr5% less$12.60/hr
Lowest rate$8.04/hr5% less1-yr reserved, no upfront$8.442/hr1-yr reserved, no upfront
Size96 vCPUs, 768 GiB96 vCPUs, 768 GiB

Prices in US East (N. Virginia)

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

Optiondb.r7i.24xlargedb.r8i.24xlargedb.r8i.24xlarge vs db.r7i.24xlarge
On-demandPay by the hour$12.00$12.60▲ 5%
1-yr reservedNo upfront33% off$8.0433% off$8.442▲ 5%
3-yr reservedNo upfront—53% off$5.922—
1-yr savings planHourly commitment20% off$9.6020% off$10.08▲ 5%

Key differences

The biggest lead each one has.

Where db.r7i.24xlarge leads
On-demand price$12.00 vs $12.60 per hour
5% cheaper
Where db.r8i.24xlarge leads
Sustained clock3.9 GHz vs 3.2 GHz
22% higher
Network baseline40 Gbps vs 37.5 Gbps
7% higher

Specs

12 of 24 specs differ. Those are in bold.

Compute3 of 8 differdb.r7i.24xlargedb.r8i.24xlarge
vCPUs9696
Physical cores4848
Threads per core22
Architecturex86_64–
ProcessorIntel Xeon Scalable (Sapphire Rapids 8488C)–
CPU makerIntelIntel
Sustained clock3.2 GHz3.9 GHz
BurstableNoNo
MemoryAll 1 matchdb.r7i.24xlargedb.r8i.24xlarge
Memory (GiB)768768
Networking3 of 3 differdb.r7i.24xlargedb.r8i.24xlarge
Network37.5 Gbps–
Network baseline37.5 Gbps40 Gbps
Network peak37.5 Gbps40 Gbps
Storage1 of 7 differdb.r7i.24xlargedb.r8i.24xlarge
StorageEBS Only–
EBS baseline bandwidth30,000 Mbps30,000 Mbps
EBS max bandwidth30,000 Mbps30,000 Mbps
EBS baseline throughput3,750 MB/s3,750 MB/s
EBS max throughput3,750 MB/s3,750 MB/s
EBS baseline IOPS120,000120,000
EBS max IOPS120,000120,000
Instance details4 of 4 differdb.r7i.24xlargedb.r8i.24xlarge
Familyr7ir8i
CategoryMemory optimized–
Current generationYes–
Normalization factor384–
Other1 of 1 differdb.r7i.24xlargedb.r8i.24xlarge
Hardware Basisr7i.24xlarger8i.24xlarge

On-demand prices by region

Cheapest for db.r7i.24xlarge first. PostgreSQL, USD per hour.

Regiondb.r7i.24xlargedb.r8i.24xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$12.00$12.60▲ 5%
US East (Ohio)us-east-2$12.00$12.60▲ 5%
US West (Oregon)us-west-2$12.00$12.60▲ 5%
Asia Pacific (Malaysia)ap-southeast-5$12.24$12.85▲ 5%
EU (Stockholm)eu-north-1$12.336$12.953▲ 5%
Canada (Central)ca-central-1$12.96$13.61▲ 5%
EU (Ireland)eu-west-1$13.44$14.11▲ 5%
Europe (Spain)eu-south-2$13.44$14.11▲ 5%
US West (N. California)us-west-1$13.44$14.11▲ 5%
Asia Pacific (Mumbai)ap-south-1$13.68$14.36▲ 5%
EU (London)eu-west-2$14.112$14.82▲ 5%
EU (Milan)eu-south-1$14.112$14.82▲ 5%
EU (Paris)eu-west-3$14.112$14.82▲ 5%
Asia Pacific (Seoul)ap-northeast-2$14.40$15.12▲ 5%
Asia Pacific (Singapore)ap-southeast-1$14.40$15.12▲ 5%
Asia Pacific (Sydney)ap-southeast-2$14.40$15.12▲ 5%
Asia Pacific (Tokyo)ap-northeast-1$14.40$15.12▲ 5%
EU (Frankfurt)eu-central-1$14.64$15.37▲ 5%
Asia Pacific (New Zealand)ap-southeast-6$15.12$15.88▲ 5%
Asia Pacific (Hyderabad)ap-south-2$15.84$14.36▼ 9%
South America (Sao Paulo)sa-east-1$19.08$19.843▲ 4%

Keep exploring

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

db.r7i.24xlargeMemory optimized, r7i family
db.r7i.24xlarge prices and specsEvery size in the r7i family

Compare db.r7i.24xlarge with

db.m7i.24xlargedb.r6i.24xlarge
db.r8i.24xlarger8i family
db.r8i.24xlarge prices and specsEvery size in the r8i family

Compare db.r8i.24xlarge with

db.m8i.24xlargedb.r8g.24xlargedb.r8a.24xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 33–53% 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.