db.r6i.32xlargevsdb.r8i.32xlarge

db.r6i.32xlarge is 5% cheaper than db.r8i.32xlarge on demand in US East (N. Virginia), saving $584.00 a month. Per vCPU, db.r6i.32xlarge costs 52% less.

At a glancedb.r6i.32xlargedb.r8i.32xlarge
On-demand$16.00/hr5% less$16.80/hr
Lowest rate$9.242/hr18% less1-yr reserved, no upfront$11.256/hr1-yr reserved, no upfront
Size128 vCPUs, 1024 GiB64 vCPUs, 1024 GiB

Prices in US East (N. Virginia)

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

Optiondb.r6i.32xlargedb.r8i.32xlargedb.r8i.32xlarge vs db.r6i.32xlarge
On-demandPay by the hour$16.00$16.80▲ 5%
1-yr reservedNo upfront42% off$9.24233% off$11.256▲ 22%
3-yr reservedNo upfront—53% off$7.896—
1-yr savings planHourly commitment—20% off$13.44—

Key differences

The biggest lead each one has.

Where db.r6i.32xlarge leads
On-demand price$16.00 vs $16.80 per hour
5% cheaper
vCPUs128 vs 64
2× higher
Where db.r8i.32xlarge leads
Sustained clock3.9 GHz vs 3.5 GHz
11% higher

Specs

11 of 24 specs differ. Those are in bold.

Compute4 of 8 differdb.r6i.32xlargedb.r8i.32xlarge
vCPUs12864
Physical cores6464
Threads per core22
Architecture–x86_64
Processor–Intel Xeon Scalable (Granite Rapids)
CPU makerIntelIntel
Sustained clock3.5 GHz3.9 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6i.32xlargedb.r8i.32xlarge
Memory (GiB)1,0241,024
Networking1 of 3 differdb.r6i.32xlargedb.r8i.32xlarge
Network–50000 Megabit
Network baseline50 Gbps50 Gbps
Network peak50 Gbps50 Gbps
Storage1 of 7 differdb.r6i.32xlargedb.r8i.32xlarge
Storage–EBS Only
EBS baseline bandwidth40,000 Mbps40,000 Mbps
EBS max bandwidth40,000 Mbps40,000 Mbps
EBS baseline throughput5,000 MB/s5,000 MB/s
EBS max throughput5,000 MB/s5,000 MB/s
EBS baseline IOPS160,000160,000
EBS max IOPS160,000160,000
Instance details4 of 4 differdb.r6i.32xlargedb.r8i.32xlarge
Familyr6ir8i
Category–Memory optimized
Current generation–Yes
Normalization factor256–
Other1 of 1 differdb.r6i.32xlargedb.r8i.32xlarge
Hardware Basisr6i.32xlarger8i.32xlarge

On-demand prices by region

Cheapest for db.r6i.32xlarge first. PostgreSQL, USD per hour.

Regiondb.r6i.32xlargedb.r8i.32xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$16.00$16.80▲ 5%
US East (Ohio)us-east-2$16.00$16.80▲ 5%
US West (Oregon)us-west-2$16.00$16.80▲ 5%
Asia Pacific (Malaysia)ap-southeast-5$16.32$17.14▲ 5%
EU (Stockholm)eu-north-1$16.448$17.27▲ 5%
Canada (Central)ca-central-1$17.299$18.14▲ 5%
Canada West (Calgary)ca-west-1$17.299$18.14▲ 5%
EU (Ireland)eu-west-1$17.92$18.82▲ 5%
US West (N. California)us-west-1$17.92$18.82▲ 5%
Asia Pacific (Mumbai)ap-south-1$18.24$19.15▲ 5%
EU (London)eu-west-2$18.816$19.76▲ 5%
EU (Milan)eu-south-1$18.816$19.76▲ 5%
EU (Paris)eu-west-3$18.816$19.76▲ 5%
Israel (Tel Aviv)il-central-1$18.82$19.76▲ 5%
Asia Pacific (Seoul)ap-northeast-2$19.20$20.16▲ 5%
Asia Pacific (Singapore)ap-southeast-1$19.20$20.16▲ 5%
Asia Pacific (Sydney)ap-southeast-2$19.20$20.16▲ 5%
Asia Pacific (Tokyo)ap-northeast-1$19.20$20.16▲ 5%
EU (Frankfurt)eu-central-1$19.52$20.50▲ 5%
Asia Pacific (New Zealand)ap-southeast-6$20.16$21.17▲ 5%
Africa (Cape Town)af-south-1$21.312$21.66▲ 2%
Europe (Spain)eu-south-2$26.624$18.82▼ 29%
Asia Pacific (Hyderabad)ap-south-2$27.456$19.15▼ 30%
Europe (Zurich)eu-central-2$32.032$21.874▼ 32%
South America (Sao Paulo)sa-east-1$33.536$26.458▼ 21%

Keep exploring

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

db.r6i.32xlarger6i family
db.r6i.32xlarge prices and specsEvery size in the r6i family

Compare db.r6i.32xlarge with

db.m6i.32xlargedb.r6id.32xlargedb.r6idn.32xlargedb.r6in.32xlarge
db.r8i.32xlargeMemory optimized, r8i family
db.r8i.32xlarge prices and specsEvery size in the r8i family

Compare db.r8i.32xlarge with

db.m8i.32xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 42–53% 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.