db.m6i.12xlargevsdb.m6idn.12xlarge

db.m6i.12xlarge is 40% cheaper than db.m6idn.12xlarge on demand in US East (N. Virginia), saving $2,049.84 a month.

At a glancedb.m6i.12xlargedb.m6idn.12xlarge
On-demand$4.272/hr40% less$7.08/hr
Lowest rate$2.736/hr50% less1-yr reserved, no upfront$5.452/hr1-yr reserved, no upfront
Size48 vCPUs, 192 GiB48 vCPUs, 192 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.12xlargedb.m6idn.12xlargedb.m6idn.12xlarge vs db.m6i.12xlarge
On-demandPay by the hour$4.272$7.08▲ 66%
1-yr reservedNo upfront36% off$2.73623% off$5.452▲ 99%

Key differences

The biggest lead each one has.

Where db.m6i.12xlarge leads
On-demand price$4.272 vs $7.08 per hour
40% cheaper
Where db.m6idn.12xlarge leads
Network baseline75 Gbps vs 18.75 Gbps
4× higher
EBS baseline bandwidth37,500 Mbps vs 15,000 Mbps
2.5× higher

Specs

11 of 19 specs differ. Those are in bold.

ComputeAll 6 matchdb.m6i.12xlargedb.m6idn.12xlarge
vCPUs4848
Physical cores2424
Threads per core22
CPU makerIntelIntel
Sustained clock3.5 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.m6i.12xlargedb.m6idn.12xlarge
Memory (GiB)192192
Networking2 of 2 differdb.m6i.12xlargedb.m6idn.12xlarge
Network baseline18.75 Gbps75 Gbps
Network peak18.75 Gbps75 Gbps
Storage7 of 7 differdb.m6i.12xlargedb.m6idn.12xlarge
Local disks–2 × 1,425 GB SSD
EBS baseline bandwidth15,000 Mbps37,500 Mbps
EBS max bandwidth15,000 Mbps37,500 Mbps
EBS baseline throughput1,875 MB/s4,687.5 MB/s
EBS max throughput1,875 MB/s4,687.5 MB/s
EBS baseline IOPS60,000150,000
EBS max IOPS60,000150,000
Instance details1 of 2 differdb.m6i.12xlargedb.m6idn.12xlarge
Familym6im6idn
Normalization factor9696
Other1 of 1 differdb.m6i.12xlargedb.m6idn.12xlarge
Hardware Basism6i.12xlargem6idn.12xlarge

On-demand prices by region

Cheapest for db.m6i.12xlarge first. PostgreSQL, USD per hour.

Regiondb.m6i.12xlargedb.m6idn.12xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$4.272$7.08▲ 66%
US East (Ohio)us-east-2$4.272$7.08▲ 66%
US West (Oregon)us-west-2$4.272$7.08▲ 66%
EU (Ireland)eu-west-1$4.728$7.858▲ 66%
Asia Pacific (Tokyo)ap-northeast-1$5.928$9.788▲ 65%

Keep exploring

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

db.m6i.12xlargem6i family
db.m6i.12xlarge prices and specsEvery size in the m6i family

Compare db.m6i.12xlarge with

db.m6g.12xlargedb.r6i.12xlargedb.m6id.12xlargedb.m6in.12xlargedb.r6i.12xlarge.tpc2.mem2xdb.m5.12xlargedb.m7i.12xlarge
db.m6idn.12xlargem6idn family
db.m6idn.12xlarge prices and specsEvery size in the m6idn family

Compare db.m6idn.12xlarge with

db.r6idn.12xlarge

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.

Connect AWS account

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