db.m6i.xlargevsdb.r6i.xlarge

db.m6i.xlarge is 29% cheaper than db.r6i.xlarge on demand in US East (N. Virginia), saving $105.12 a month.

At a glancedb.m6i.xlargedb.r6i.xlarge
On-demand$0.356/hr29% less$0.5/hr
Lowest rate$0.228/hr21% less1-yr reserved, no upfront$0.2888/hr1-yr reserved, no upfront
Size4 vCPUs, 16 GiB4 vCPUs, 32 GiB

Prices in US East (N. Virginia)

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

Optiondb.m6i.xlargedb.r6i.xlargedb.r6i.xlarge vs db.m6i.xlarge
On-demandPay by the hour$0.356$0.5▲ 40%
1-yr reservedNo upfront36% off$0.22842% off$0.2888▲ 27%

Key differences

The biggest lead each one has.

Where db.m6i.xlarge leads
On-demand price$0.356 vs $0.5 per hour
29% cheaper
Where db.r6i.xlarge leads
Memory (GiB)32 vs 16
2× higher

Specs

8 of 23 specs differ. Those are in bold.

Compute2 of 8 differdb.m6i.xlargedb.r6i.xlarge
vCPUs44
Physical cores22
Threads per core22
Architecturex86_64–
ProcessorIntel Xeon Scalable Ice Lake–
CPU makerIntelIntel
Sustained clock3.5 GHz3.5 GHz
BurstableNoNo
Memory1 of 1 differdb.m6i.xlargedb.r6i.xlarge
Memory (GiB)1632
Networking1 of 3 differdb.m6i.xlargedb.r6i.xlarge
NetworkUp to 12.5 Gbps–
Network baseline1.562 Gbps1.562 Gbps
Network peak12.5 Gbps12.5 Gbps
StorageAll 7 matchdb.m6i.xlargedb.r6i.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 details3 of 3 differdb.m6i.xlargedb.r6i.xlarge
Familym6ir6i
CategoryGeneral purposeMemory optimized
Current generationYes–
Other1 of 1 differdb.m6i.xlargedb.r6i.xlarge
Hardware Basism6i.xlarger6i.xlarge

On-demand prices by region

Cheapest for db.m6i.xlarge first. PostgreSQL, USD per hour.

Regiondb.m6i.xlargedb.r6i.xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.356$0.5▲ 40%
US East (Ohio)us-east-2$0.356$0.5▲ 40%
US West (Oregon)us-west-2$0.356$0.5▲ 40%
EU (Stockholm)eu-north-1$0.374$0.514▲ 37%
Mexico (Central)mx-central-1$0.374$0.526▲ 41%
Canada (Central)ca-central-1$0.392$0.541▲ 38%
Canada West (Calgary)ca-west-1$0.392$0.541▲ 38%
EU (Ireland)eu-west-1$0.394$0.56▲ 42%
Europe (Spain)eu-south-2$0.394$0.832▲ 111%
US West (N. California)us-west-1$0.406$0.56▲ 38%
EU (London)eu-west-2$0.412$0.588▲ 43%
EU (Paris)eu-west-3$0.412$0.588▲ 43%
EU (Milan)eu-south-1$0.414$0.588▲ 42%
Israel (Tel Aviv)il-central-1$0.414$0.59▲ 43%
Middle East (UAE)me-central-1$0.416$0.915▲ 120%
Asia Pacific (Malaysia)ap-southeast-5$0.42$0.51▲ 21%
Asia Pacific (Thailand)ap-southeast-7$0.42$0.51▲ 21%
AWS GovCloud (US-East)us-gov-east-1$0.42$0.7▲ 67%
AWS GovCloud (US-West)us-gov-west-1$0.42$0.7▲ 67%
EU (Frankfurt)eu-central-1$0.424$0.61▲ 44%
Middle East (Bahrain)me-south-1$0.434$0.616▲ 42%
Asia Pacific (Taipei)ap-east-2$0.444$0.54▲ 22%
Europe (Zurich)eu-central-2$0.466$1.001▲ 115%
South America (Sao Paulo)sa-east-1$0.466$1.048▲ 125%
Africa (Cape Town)af-south-1$0.468$0.666▲ 42%
Asia Pacific (Jakarta)ap-southeast-3$0.494$0.91▲ 84%
Asia Pacific (Seoul)ap-northeast-2$0.494$0.6▲ 21%
Asia Pacific (Singapore)ap-southeast-1$0.494$0.6▲ 21%
Asia Pacific (Sydney)ap-southeast-2$0.494$0.6▲ 21%
Asia Pacific (Tokyo)ap-northeast-1$0.494$0.6▲ 21%
Asia Pacific (Hyderabad)ap-south-2$0.506$0.858▲ 70%
Asia Pacific (Mumbai)ap-south-1$0.506$0.57▲ 13%
Asia Pacific (Osaka)ap-northeast-3$0.518$0.6▲ 16%
Asia Pacific (New Zealand)ap-southeast-6$0.5188$0.63▲ 21%
Asia Pacific (Hong Kong)ap-east-1$0.543$0.66▲ 22%

Keep exploring

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

db.m6i.xlargeGeneral purpose, m6i family
db.m6i.xlarge prices and specsEvery size in the m6i family

Compare db.m6i.xlarge with

db.m6g.xlargedb.r6i.xlarge.tpc2.mem2xdb.r6i.xlarge.tpc2.mem4xdb.t3.xlargedb.m6id.xlargedb.m6idn.xlargedb.m6in.xlargedb.t2.xlargedb.m5.xlargedb.m7i.xlarge
db.r6i.xlargeMemory optimized, r6i family
db.r6i.xlarge prices and specsEvery size in the r6i family

Compare db.r6i.xlarge with

db.r6g.xlargedb.r6id.xlargedb.r6idn.xlargedb.r6in.xlargedb.r5.xlargedb.r5.xlarge.tpc2.mem2xdb.r5.xlarge.tpc2.mem4xdb.r7i.xlargedb.r7i.xlarge.tpc2.mem2xdb.r7i.xlarge.tpc2.mem4x

Pay the committed rate, with commitment protection

The best committed rate on these two is 36–42% 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.