db.r6i.16xlargevsdb.r7i.16xlarge

db.r6i.16xlarge and db.r7i.16xlarge cost the same on demand in US East (N. Virginia), $8.00 per hour.

At a glancedb.r6i.16xlargedb.r7i.16xlarge
On-demand$8.00/hr$8.00/hr
Lowest rate$4.621/hr14% less1-yr reserved, no upfront$5.36/hr1-yr reserved, no upfront
Size64 vCPUs, 512 GiB64 vCPUs, 512 GiB
ProcessorIntel Xeon Scalable Ice LakeIntel Xeon Scalable (Sapphire Rapids 8488C)
Architecturex86_64x86_64

Prices in US East (N. Virginia)

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

Optiondb.r6i.16xlargedb.r7i.16xlargedb.r7i.16xlarge vs db.r6i.16xlarge
On-demandPay by the hour$8.00$8.00Same
1-yr reservedNo upfront42% off$4.62133% off$5.36▲ 16%
1-yr savings planHourly commitment—20% off$6.40—

Key differences

The biggest lead each one has.

Where db.r6i.16xlarge leads
Sustained clock3.5 GHz vs 3.2 GHz
9% higher
Where db.r7i.16xlarge leads

No clear lead on the measures we compare.

Specs

5 of 24 specs differ. Those are in bold.

Compute2 of 8 differdb.r6i.16xlargedb.r7i.16xlarge
vCPUs6464
Physical cores3232
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Scalable Ice LakeIntel Xeon Scalable (Sapphire Rapids 8488C)
CPU makerIntelIntel
Sustained clock3.5 GHz3.2 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6i.16xlargedb.r7i.16xlarge
Memory (GiB)512512
NetworkingAll 3 matchdb.r6i.16xlargedb.r7i.16xlarge
Network25 Gbps25 Gbps
Network baseline25 Gbps25 Gbps
Network peak25 Gbps25 Gbps
StorageAll 7 matchdb.r6i.16xlargedb.r7i.16xlarge
StorageEBS OnlyEBS Only
EBS baseline bandwidth20,000 Mbps20,000 Mbps
EBS max bandwidth20,000 Mbps20,000 Mbps
EBS baseline throughput2,500 MB/s2,500 MB/s
EBS max throughput2,500 MB/s2,500 MB/s
EBS baseline IOPS80,00080,000
EBS max IOPS80,00080,000
Instance details2 of 4 differdb.r6i.16xlargedb.r7i.16xlarge
Familyr6ir7i
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor128256
Other1 of 1 differdb.r6i.16xlargedb.r7i.16xlarge
Hardware Basisr6i.16xlarger7i.16xlarge

On-demand prices by region

Cheapest for db.r6i.16xlarge first. PostgreSQL, USD per hour.

Regiondb.r6i.16xlargedb.r7i.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$8.00$8.00Same
US East (Ohio)us-east-2$8.00$8.00Same
US West (Oregon)us-west-2$8.00$8.00Same
Asia Pacific (Malaysia)ap-southeast-5$8.16$8.16Same
Asia Pacific (Thailand)ap-southeast-7$8.16$9.504▲ 16%
EU (Stockholm)eu-north-1$8.224$8.224Same
Mexico (Central)mx-central-1$8.416$8.416Same
Asia Pacific (Taipei)ap-east-2$8.64$8.64Same
Canada (Central)ca-central-1$8.65$8.64Same
EU (Ireland)eu-west-1$8.96$8.96Same
US West (N. California)us-west-1$8.96$8.96Same
Asia Pacific (Mumbai)ap-south-1$9.12$9.12Same
EU (London)eu-west-2$9.408$9.408Same
EU (Milan)eu-south-1$9.408$9.408Same
EU (Paris)eu-west-3$9.408$9.408Same
Asia Pacific (Osaka)ap-northeast-3$9.60$11.20▲ 17%
Asia Pacific (Seoul)ap-northeast-2$9.60$9.60Same
Asia Pacific (Singapore)ap-southeast-1$9.60$9.60Same
Asia Pacific (Sydney)ap-southeast-2$9.60$9.60Same
Asia Pacific (Tokyo)ap-northeast-1$9.60$9.60Same
EU (Frankfurt)eu-central-1$9.76$9.76Same
Asia Pacific (New Zealand)ap-southeast-6$10.08$10.08Same
AWS GovCloud (US-East)us-gov-east-1$11.20$9.60▼ 14%
AWS GovCloud (US-West)us-gov-west-1$11.20$9.60▼ 14%
Europe (Spain)eu-south-2$13.312$8.96▼ 33%
Asia Pacific (Hyderabad)ap-south-2$13.728$10.56▼ 23%
Asia Pacific (Jakarta)ap-southeast-3$14.56$9.60▼ 34%
Asia Pacific (Melbourne)ap-southeast-4$14.56$11.20▼ 23%
South America (Sao Paulo)sa-east-1$16.768$12.72▼ 24%

Keep exploring

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

db.r6i.16xlargeMemory optimized, r6i family
db.r6i.16xlarge prices and specsEvery size in the r6i family

Compare db.r6i.16xlarge with

db.m6i.16xlargedb.r6g.16xlargedb.r6id.16xlargedb.r6idn.16xlargedb.r6in.16xlargedb.r5.16xlarge
db.r7i.16xlargeMemory optimized, r7i family
db.r7i.16xlarge prices and specsEvery size in the r7i family

Compare db.r7i.16xlarge with

db.r7g.16xlargedb.m7i.16xlargedb.r8i.16xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 33–42% 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.