db.m6i.xlargevsdb.m6idn.xlarge

db.m6i.xlarge is 40% cheaper than db.m6idn.xlarge on demand in US East (N. Virginia), saving $170.82 a month.

At a glancedb.m6i.xlargedb.m6idn.xlarge
On-demand$0.356/hr40% less$0.59/hr
Lowest rate$0.228/hr50% less1-yr reserved, no upfront$0.4543/hr1-yr reserved, no upfront
Size4 vCPUs, 16 GiB4 vCPUs, 16 GiB
ProcessorIntel Xeon Scalable Ice LakeIntel Xeon Scalable Ice Lake
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.m6i.xlargedb.m6idn.xlargedb.m6idn.xlarge vs db.m6i.xlarge
On-demandPay by the hour$0.356$0.59▲ 66%
1-yr reservedNo upfront36% off$0.22823% off$0.4543▲ 99%

Key differences

The biggest lead each one has.

Where db.m6i.xlarge leads
On-demand price$0.356 vs $0.59 per hour
40% cheaper
Where db.m6idn.xlarge leads
Network baseline6.25 Gbps vs 1.562 Gbps
4× higher
EBS baseline bandwidth3,125 Mbps vs 1,250 Mbps
2.5× higher

Specs

14 of 25 specs differ. Those are in bold.

ComputeAll 8 matchdb.m6i.xlargedb.m6idn.xlarge
vCPUs44
Physical cores22
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Scalable Ice LakeIntel Xeon Scalable Ice Lake
CPU makerIntelIntel
Sustained clock3.5 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.m6i.xlargedb.m6idn.xlarge
Memory (GiB)1616
Networking3 of 3 differdb.m6i.xlargedb.m6idn.xlarge
NetworkUp to 12.5 GbpsUp to 30 Gbps
Network baseline1.562 Gbps6.25 Gbps
Network peak12.5 Gbps30 Gbps
Storage8 of 8 differdb.m6i.xlargedb.m6idn.xlarge
StorageEBS Only1 x 237 NVMe SSD
Local disks–1 × 237 GB SSD
EBS baseline bandwidth1,250 Mbps3,125 Mbps
EBS max bandwidth10,000 Mbps25,000 Mbps
EBS baseline throughput156.25 MB/s390.625 MB/s
EBS max throughput1,250 MB/s3,125 MB/s
EBS baseline IOPS6,00012,500
EBS max IOPS40,000100,000
Instance details2 of 4 differdb.m6i.xlargedb.m6idn.xlarge
Familym6im6idn
CategoryGeneral purposeGeneral purpose
Current generationYesYes
Normalization factor–8
Other1 of 1 differdb.m6i.xlargedb.m6idn.xlarge
Hardware Basism6i.xlargem6idn.xlarge

On-demand prices by region

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

Regiondb.m6i.xlargedb.m6idn.xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.356$0.59▲ 66%
US East (Ohio)us-east-2$0.356$0.59▲ 66%
US West (Oregon)us-west-2$0.356$0.59▲ 66%
EU (Ireland)eu-west-1$0.394$0.655▲ 66%
Asia Pacific (Tokyo)ap-northeast-1$0.494$0.816▲ 65%

Keep exploring

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

Pay the committed rate, with commitment protection

The best committed rate on these two is 23–36% 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.