db.m5.4xlargevsdb.m5d.4xlarge

db.m5.4xlarge is 15% cheaper than db.m5d.4xlarge on demand in US East (N. Virginia), saving $183.96 a month.

At a glancedb.m5.4xlargedb.m5d.4xlarge
On-demand$1.424/hr15% less$1.676/hr
Lowest rate$0.9121/hr29% less1-yr reserved, no upfront$1.291/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.m5.4xlargedb.m5d.4xlargedb.m5d.4xlarge vs db.m5.4xlarge
On-demandPay by the hour$1.424$1.676▲ 18%
1-yr reservedNo upfront36% off$0.912123% off$1.291▲ 41%

Key differences

The biggest lead each one has.

Where db.m5.4xlarge leads
On-demand price$1.424 vs $1.676 per hour
15% cheaper
Where db.m5d.4xlarge leads

No clear lead on the measures we compare.

Specs

6 of 21 specs differ. Those are in bold.

ComputeAll 6 matchdb.m5.4xlargedb.m5d.4xlarge
vCPUs1616
Physical cores88
Threads per core22
CPU makerIntelIntel
Sustained clock3.1 GHz3.1 GHz
BurstableNoNo
MemoryAll 1 matchdb.m5.4xlargedb.m5d.4xlarge
Memory (GiB)6464
NetworkingAll 2 matchdb.m5.4xlargedb.m5d.4xlarge
Network baseline5 Gbps5 Gbps
Network peak10 Gbps10 Gbps
Storage2 of 8 differdb.m5.4xlargedb.m5d.4xlarge
StorageEBS Only–
Local disks–2 × 300 GB SSD
EBS baseline bandwidth4,750 Mbps4,750 Mbps
EBS max bandwidth4,750 Mbps4,750 Mbps
EBS baseline throughput593.75 MB/s593.75 MB/s
EBS max throughput593.75 MB/s593.75 MB/s
EBS baseline IOPS18,75018,750
EBS max IOPS18,75018,750
Instance details3 of 3 differdb.m5.4xlargedb.m5d.4xlarge
Familym5m5d
CategoryGeneral purpose–
Normalization factor6432
Other1 of 1 differdb.m5.4xlargedb.m5d.4xlarge
Hardware Basism5.4xlargem5d.4xlarge

On-demand prices by region

Cheapest for db.m5.4xlarge first. PostgreSQL, USD per hour.

Regiondb.m5.4xlargedb.m5d.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.424$1.676▲ 18%
US East (Ohio)us-east-2$1.424$1.676▲ 18%
US West (Oregon)us-west-2$1.424$1.676▲ 18%
EU (Stockholm)eu-north-1$1.497$1.76▲ 18%
Canada (Central)ca-central-1$1.568$1.846▲ 18%
EU (Ireland)eu-west-1$1.576$1.856▲ 18%
US West (N. California)us-west-1$1.624$1.929▲ 19%
EU (London)eu-west-2$1.648$1.945▲ 18%
EU (Paris)eu-west-3$1.648$1.942▲ 18%
EU (Milan)eu-south-1$1.655$1.952▲ 18%
EU (Frankfurt)eu-central-1$1.696$2.006▲ 18%
AWS GovCloud (US-East)us-gov-east-1$1.70$1.93▲ 14%
AWS GovCloud (US-West)us-gov-west-1$1.70$1.93▲ 14%
Middle East (Bahrain)me-south-1$1.734$2.045▲ 18%
Middle East (UAE)me-central-1$1.736$2.045▲ 18%
South America (Sao Paulo)sa-east-1$1.864$2.193▲ 18%
Africa (Cape Town)af-south-1$1.875$2.211▲ 18%
Asia Pacific (Jakarta)ap-southeast-3$1.976$2.322▲ 18%
Asia Pacific (Seoul)ap-northeast-2$1.976$2.328▲ 18%
Asia Pacific (Singapore)ap-southeast-1$1.976$2.322▲ 18%
Asia Pacific (Sydney)ap-southeast-2$1.976$2.338▲ 18%
Asia Pacific (Tokyo)ap-northeast-1$1.976$2.327▲ 18%
Asia Pacific (Hyderabad)ap-south-2$2.024$9.64▲ 376%
Asia Pacific (Mumbai)ap-south-1$2.024$2.445▲ 21%
Asia Pacific (Osaka)ap-northeast-3$2.074$2.44▲ 18%
Asia Pacific (Hong Kong)ap-east-1$2.174$2.552▲ 17%

Keep exploring

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

db.m5.4xlargeGeneral purpose, m5 family
db.m5.4xlarge prices and specsEvery size in the m5 family

Compare db.m5.4xlarge with

db.r5.4xlargedb.r5.4xlarge.tpc2.mem2xdb.r5.4xlarge.tpc2.mem3xdb.r5.4xlarge.tpc2.mem4xdb.m4.4xlargedb.m6i.4xlarge
db.m5d.4xlargem5d family
db.m5d.4xlarge prices and specsEvery size in the m5d family

Compare db.m5d.4xlarge with

db.r5d.4xlargedb.m6id.4xlarge

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.