db.m6i.4xlargevsdb.m6id.4xlarge

db.m6i.4xlarge is 21% cheaper than db.m6id.4xlarge on demand in US East (N. Virginia), saving $270.10 a month.

At a glancedb.m6i.4xlargedb.m6id.4xlarge
On-demand$1.424/hr21% less$1.794/hr
Lowest rate$0.912/hr34% less1-yr reserved, no upfront$1.381/hr1-yr reserved, no upfront
Size16 vCPUs, 64 GiB16 vCPUs, 64 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.4xlargedb.m6id.4xlargedb.m6id.4xlarge vs db.m6i.4xlarge
On-demandPay by the hour$1.424$1.794▲ 26%
1-yr reservedNo upfront36% off$0.91223% off$1.381▲ 51%

Key differences

The biggest lead each one has.

Where db.m6i.4xlarge leads
On-demand price$1.424 vs $1.794 per hour
21% cheaper
Where db.m6id.4xlarge leads

No clear lead on the measures we compare.

Specs

6 of 21 specs differ. Those are in bold.

ComputeAll 6 matchdb.m6i.4xlargedb.m6id.4xlarge
vCPUs1616
Physical cores88
Threads per core22
CPU makerIntelIntel
Sustained clock3.5 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.m6i.4xlargedb.m6id.4xlarge
Memory (GiB)6464
NetworkingAll 2 matchdb.m6i.4xlargedb.m6id.4xlarge
Network baseline6.25 Gbps6.25 Gbps
Network peak12.5 Gbps12.5 Gbps
Storage2 of 8 differdb.m6i.4xlargedb.m6id.4xlarge
StorageEBS Only–
Local disks–1 × 950 GB SSD
EBS baseline bandwidth5,000 Mbps5,000 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput625 MB/s625 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS20,00020,000
EBS max IOPS40,00040,000
Instance details3 of 3 differdb.m6i.4xlargedb.m6id.4xlarge
Familym6im6id
CategoryGeneral purpose–
Normalization factor–32
Other1 of 1 differdb.m6i.4xlargedb.m6id.4xlarge
Hardware Basism6i.4xlargem6id.4xlarge

On-demand prices by region

Cheapest for db.m6i.4xlarge first. PostgreSQL, USD per hour.

Regiondb.m6i.4xlargedb.m6id.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.424$1.794▲ 26%
US East (Ohio)us-east-2$1.424$1.794▲ 26%
US West (Oregon)us-west-2$1.424$1.794▲ 26%
Mexico (Central)mx-central-1$1.496$1.88▲ 26%
Canada West (Calgary)ca-west-1$1.568$1.971▲ 26%
EU (Ireland)eu-west-1$1.576$1.981▲ 26%
Asia Pacific (Malaysia)ap-southeast-5$1.68$2.232▲ 33%
Asia Pacific (Thailand)ap-southeast-7$1.68$2.232▲ 33%
EU (Frankfurt)eu-central-1$1.696$2.144▲ 26%
Asia Pacific (Taipei)ap-east-2$1.776$2.24▲ 26%
Asia Pacific (Sydney)ap-southeast-2$1.976$2.494▲ 26%
Asia Pacific (Tokyo)ap-northeast-1$1.976$2.485▲ 26%
Asia Pacific (New Zealand)ap-southeast-6$2.075$2.621▲ 26%

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.