db.m6idn.8xlargevsdb.r6idn.8xlarge

db.m6idn.8xlarge is 24% cheaper than db.r6idn.8xlarge on demand in US East (N. Virginia), saving $1,082.59 a month.

At a glancedb.m6idn.8xlargedb.r6idn.8xlarge
On-demand$4.72/hr24% less$6.203/hr
Lowest rate$3.634/hr24% less1-yr reserved, no upfront$4.776/hr1-yr reserved, no upfront
Size32 vCPUs, 128 GiB32 vCPUs, 256 GiB

Prices in US East (N. Virginia)

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

Optiondb.m6idn.8xlargedb.r6idn.8xlargedb.r6idn.8xlarge vs db.m6idn.8xlarge
On-demandPay by the hour$4.72$6.203▲ 31%
1-yr reservedNo upfront23% off$3.63423% off$4.776▲ 31%

Key differences

The biggest lead each one has.

Where db.m6idn.8xlarge leads
On-demand price$4.72 vs $6.203 per hour
24% cheaper
Where db.r6idn.8xlarge leads
Memory (GiB)256 vs 128
2× higher

Specs

3 of 19 specs differ. Those are in bold.

ComputeAll 6 matchdb.m6idn.8xlargedb.r6idn.8xlarge
vCPUs3232
Physical cores1616
Threads per core22
CPU makerIntelIntel
Sustained clock3.5 GHz3.5 GHz
BurstableNoNo
Memory1 of 1 differdb.m6idn.8xlargedb.r6idn.8xlarge
Memory (GiB)128256
NetworkingAll 2 matchdb.m6idn.8xlargedb.r6idn.8xlarge
Network baseline50 Gbps50 Gbps
Network peak50 Gbps50 Gbps
StorageAll 7 matchdb.m6idn.8xlargedb.r6idn.8xlarge
Local disks1 × 1,900 GB SSD1 × 1,900 GB SSD
EBS baseline bandwidth25,000 Mbps25,000 Mbps
EBS max bandwidth25,000 Mbps25,000 Mbps
EBS baseline throughput3,125 MB/s3,125 MB/s
EBS max throughput3,125 MB/s3,125 MB/s
EBS baseline IOPS100,000100,000
EBS max IOPS100,000100,000
Instance details1 of 2 differdb.m6idn.8xlargedb.r6idn.8xlarge
Familym6idnr6idn
Normalization factor6464
Other1 of 1 differdb.m6idn.8xlargedb.r6idn.8xlarge
Hardware Basism6idn.8xlarger6idn.8xlarge

On-demand prices by region

Cheapest for db.m6idn.8xlarge first. PostgreSQL, USD per hour.

Regiondb.m6idn.8xlargedb.r6idn.8xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$4.72$6.203▲ 31%
US East (Ohio)us-east-2$4.72$6.203▲ 31%
US West (Oregon)us-west-2$4.72$6.203▲ 31%
EU (Ireland)eu-west-1$5.239$6.914▲ 32%
Asia Pacific (Tokyo)ap-northeast-1$6.526$7.50▲ 15%

Keep exploring

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

db.m6idn.8xlargem6idn family
db.m6idn.8xlarge prices and specsEvery size in the m6idn family

Compare db.m6idn.8xlarge with

db.m6i.8xlarge
db.r6idn.8xlarger6idn family
db.r6idn.8xlarge prices and specsEvery size in the r6idn family

Compare db.r6idn.8xlarge with

db.r6i.8xlargedb.r6i.8xlarge.tpc2.mem3xdb.r6i.8xlarge.tpc2.mem4x

Pay the committed rate, with commitment protection

The best committed rate on these two is 23% 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.