db.r6g.xlargevsdb.r6i.xlarge.tpc2.mem4x

db.r6g.xlarge is 76% cheaper than db.r6i.xlarge.tpc2.mem4x on demand in US East (N. Virginia), saving $1,032.22 a month. They use different processor architectures (arm64 and x86_64), so software built for one may need rebuilding to run on the other.

At a glancedb.r6g.xlargedb.r6i.xlarge.tpc2.mem4x
On-demand$0.45/hr76% less$1.864/hr
Lowest rate$0.2597/hr81% less1-yr reserved, no upfront$1.342/hr1-yr reserved, no upfront
Size4 vCPUs, 32 GiB4 vCPUs, 128 GiB
ProcessorAWS Graviton2Intel Xeon Scalable Ice Lake
Architecturearm64x86_64

Prices in US East (N. Virginia)

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

Optiondb.r6g.xlargedb.r6i.xlarge.tpc2.mem4xdb.r6i.xlarge.tpc2.mem4x vs db.r6g.xlarge
On-demandPay by the hour$0.45$1.864▲ 314%
1-yr reservedNo upfront42% off$0.259728% off$1.342▲ 417%

Key differences

The biggest lead each one has.

Where db.r6g.xlarge leads
On-demand price$0.45 vs $1.864 per hour
76% cheaper
Where db.r6i.xlarge.tpc2.mem4x leads
Memory (GiB)128 vs 32
4× higher

Specs

20 of 24 specs differ. Those are in bold.

Compute7 of 8 differdb.r6g.xlargedb.r6i.xlarge.tpc2.mem4x
vCPUs44
Physical cores4–
Threads per core1–
Architecturearm64x86_64
ProcessorAWS Graviton2Intel Xeon Scalable Ice Lake
CPU makerAWS–
Sustained clock2.5 GHz–
BurstableNo–
Memory1 of 1 differdb.r6g.xlargedb.r6i.xlarge.tpc2.mem4x
Memory (GiB)32128
Networking3 of 3 differdb.r6g.xlargedb.r6i.xlarge.tpc2.mem4x
NetworkUp to 10 GigabitUp to 12.5 Gbps
Network baseline1.25 Gbps–
Network peak10 Gbps–
Storage6 of 7 differdb.r6g.xlargedb.r6i.xlarge.tpc2.mem4x
StorageEBS OnlyEBS Only
EBS baseline bandwidth1,188 Mbps–
EBS max bandwidth4,750 Mbps–
EBS baseline throughput148.5 MB/s–
EBS max throughput593.75 MB/s–
EBS baseline IOPS6,000–
EBS max IOPS20,000–
Instance details2 of 4 differdb.r6g.xlargedb.r6i.xlarge.tpc2.mem4x
Familyr6gr6i
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor832
Other1 of 1 differdb.r6g.xlargedb.r6i.xlarge.tpc2.mem4x
Hardware Basisr6g.xlarge–

On-demand prices by region

Cheapest for db.r6g.xlarge first. PostgreSQL, USD per hour.

Regiondb.r6g.xlargedb.r6i.xlarge.tpc2.mem4xDifference
US East (N. Virginia)Used in summaryus-east-1$0.45$1.864▲ 314%
US East (Ohio)us-east-2$0.45$1.864▲ 314%
US West (Oregon)us-west-2$0.45$1.864▲ 314%
Asia Pacific (Malaysia)ap-southeast-5$0.46$2.04▲ 343%
EU (Stockholm)eu-north-1$0.462$1.96▲ 324%
Canada (Central)ca-central-1$0.486$2.016▲ 315%
Canada West (Calgary)ca-west-1$0.486$2.048▲ 321%
EU (Ireland)eu-west-1$0.504$2.062▲ 309%
Europe (Spain)eu-south-2$0.504$2.064▲ 310%
US West (N. California)us-west-1$0.504$2.054▲ 308%
Asia Pacific (Hyderabad)ap-south-2$0.512$2.104▲ 311%
Asia Pacific (Mumbai)ap-south-1$0.513$2.104▲ 310%
EU (Milan)eu-south-1$0.528$2.168▲ 311%
EU (Paris)eu-west-3$0.528$2.166▲ 310%
EU (London)eu-west-2$0.529$2.176▲ 311%
Israel (Tel Aviv)il-central-1$0.529$2.165▲ 309%
Asia Pacific (Osaka)ap-northeast-3$0.539$2.216▲ 311%
Asia Pacific (Jakarta)ap-southeast-3$0.54$2.216▲ 310%
Asia Pacific (Melbourne)ap-southeast-4$0.54$2.211▲ 309%
Asia Pacific (Seoul)ap-northeast-2$0.54$2.216▲ 310%
Asia Pacific (Singapore)ap-southeast-1$0.54$2.216▲ 310%
Asia Pacific (Sydney)ap-southeast-2$0.54$2.211▲ 309%
Asia Pacific (Tokyo)ap-northeast-1$0.54$2.216▲ 310%
AWS GovCloud (US-East)us-gov-east-1$0.54$2.244▲ 316%
AWS GovCloud (US-West)us-gov-west-1$0.54$2.243▲ 315%
EU (Frankfurt)eu-central-1$0.549$2.256▲ 311%
Middle East (Bahrain)me-south-1$0.554$2.272▲ 310%
Middle East (UAE)me-central-1$0.554$2.272▲ 310%
Asia Pacific (Hong Kong)ap-east-1$0.593$2.438▲ 311%
Africa (Cape Town)af-south-1$0.599$2.456▲ 310%
Europe (Zurich)eu-central-2$0.603$2.482▲ 312%
South America (Sao Paulo)sa-east-1$0.935$3.888▲ 316%

Keep exploring

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

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AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.