db.r7i.xlargevsdb.r8i.xlarge

db.r7i.xlarge is 6% cheaper than db.r8i.xlarge on demand in US East (N. Virginia), saving $21.90 a month.

At a glancedb.r7i.xlargedb.r8i.xlarge
On-demand$0.5/hr6% less$0.53/hr
Lowest rate$0.335/hr6% less1-yr reserved, no upfront$0.3551/hr1-yr reserved, no upfront
Size4 vCPUs, 32 GiB4 vCPUs, 32 GiB
ProcessorIntel Xeon Scalable (Sapphire Rapids 8488C)Intel Xeon Scalable (Granite Rapids)
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.r7i.xlargedb.r8i.xlargedb.r8i.xlarge vs db.r7i.xlarge
On-demandPay by the hour$0.5$0.53▲ 6%
1-yr reservedNo upfront33% off$0.33533% off$0.3551▲ 6%
3-yr reservedNo upfront—53% off$0.2491—
1-yr savings planHourly commitment20% off$0.420% off$0.424▲ 6%

Key differences

The biggest lead each one has.

Where db.r7i.xlarge leads
On-demand price$0.5 vs $0.53 per hour
6% cheaper
Where db.r8i.xlarge leads
Sustained clock3.9 GHz vs 3.2 GHz
22% higher
Network baseline1.875 Gbps vs 1.562 Gbps
20% higher

Specs

6 of 23 specs differ. Those are in bold.

Compute2 of 8 differdb.r7i.xlargedb.r8i.xlarge
vCPUs44
Physical cores22
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Scalable (Sapphire Rapids 8488C)Intel Xeon Scalable (Granite Rapids)
CPU makerIntelIntel
Sustained clock3.2 GHz3.9 GHz
BurstableNoNo
MemoryAll 1 matchdb.r7i.xlargedb.r8i.xlarge
Memory (GiB)3232
Networking2 of 3 differdb.r7i.xlargedb.r8i.xlarge
NetworkUp to 12.5 GbpsUp to 12500 Megabit
Network baseline1.562 Gbps1.875 Gbps
Network peak12.5 Gbps12.5 Gbps
StorageAll 7 matchdb.r7i.xlargedb.r8i.xlarge
StorageEBS OnlyEBS Only
EBS baseline bandwidth1,250 Mbps1,250 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput156.25 MB/s156.25 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS6,0006,000
EBS max IOPS40,00040,000
Instance details1 of 3 differdb.r7i.xlargedb.r8i.xlarge
Familyr7ir8i
CategoryMemory optimizedMemory optimized
Current generationYesYes
Other1 of 1 differdb.r7i.xlargedb.r8i.xlarge
Hardware Basisr7i.xlarger8i.xlarge

On-demand prices by region

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

Regiondb.r7i.xlargedb.r8i.xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.5$0.53▲ 6%
US East (Ohio)us-east-2$0.5$0.53▲ 6%
US West (Oregon)us-west-2$0.5$0.53▲ 6%
Asia Pacific (Malaysia)ap-southeast-5$0.51$0.54▲ 6%
EU (Stockholm)eu-north-1$0.514$0.5397▲ 5%
Canada (Central)ca-central-1$0.54$0.57▲ 6%
EU (Ireland)eu-west-1$0.56$0.59▲ 5%
Europe (Spain)eu-south-2$0.56$0.59▲ 5%
US West (N. California)us-west-1$0.56$0.59▲ 5%
Asia Pacific (Mumbai)ap-south-1$0.57$0.6▲ 5%
EU (London)eu-west-2$0.588$0.62▲ 5%
EU (Milan)eu-south-1$0.588$0.62▲ 5%
EU (Paris)eu-west-3$0.588$0.62▲ 5%
Asia Pacific (Seoul)ap-northeast-2$0.6$0.63▲ 5%
Asia Pacific (Singapore)ap-southeast-1$0.6$0.63▲ 5%
Asia Pacific (Sydney)ap-southeast-2$0.6$0.63▲ 5%
Asia Pacific (Tokyo)ap-northeast-1$0.6$0.63▲ 5%
EU (Frankfurt)eu-central-1$0.61$0.64▲ 5%
Asia Pacific (New Zealand)ap-southeast-6$0.63$0.66▲ 5%
Asia Pacific (Hyderabad)ap-south-2$0.66$0.6▼ 9%
South America (Sao Paulo)sa-east-1$0.795$0.8268▲ 4%

Keep exploring

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

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

Compare db.r7i.xlarge with

db.r7g.xlargedb.m7i.xlargedb.r6i.xlargedb.r6i.xlarge.tpc2.mem2xdb.r6i.xlarge.tpc2.mem4x
db.r8i.xlargeMemory optimized, r8i family
db.r8i.xlarge prices and specsEvery size in the r8i family

Compare db.r8i.xlarge with

db.m8i.xlargedb.r8g.xlargedb.r8a.xlargedb.r7i.xlarge.tpc2.mem2xdb.r7i.xlarge.tpc2.mem4x

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.