Amazon RDS for PostgreSQL vs Azure Database for PostgreSQL Flexible Server

Amazon RDS for PostgreSQL has no complete price above 251.2K users.
Azure Database for PostgreSQL Flexible Server has no complete price above 63.1K users.
Azure Database for PostgreSQL Flexible Server becomes cheaper than Amazon RDS for PostgreSQL above 2.2K users.
Amazon RDS for PostgreSQL becomes cheaper than Azure Database for PostgreSQL Flexible Server above 4.6K users.

Cost from 1k to 1M users

Region

Azure Database for PostgreSQL Flexible Server becomes cheaper than Amazon RDS for PostgreSQL above 2.2K users
Amazon RDS for PostgreSQL becomes cheaper than Azure Database for PostgreSQL Flexible Server above 4.6K users

At three scales

The cheapest qualifying plan of each, for the same workload. Every line links to its source.

1K users

Amazon RDS for PostgreSQL costs $4.19 less a month; Azure Database for PostgreSQL Flexible Server costs 1.4× as much.

Amazon RDS for PostgreSQL

$11.90

On-Demand · db.t4g.micro

On-Demand plan
AWS Price List API · 6W8ECRFVDATCER7J
This price comes from the official AWS Price List API, SKU 6W8ECRFVDATCER7J.
How it became this figure: no base fee; billed per resource
$0.00
Instance: db.t4g.micro
AWS Price List API · 9HPEGXQTDDGH53C9
This price comes from the official AWS Price List API, SKU 9HPEGXQTDDGH53C9.
How it became this figure: $0.016/h × 730
$11.68
Egress1.91
AWS Price List API · HQEH3ZWJVT46JHRG
This price comes from the official AWS Price List API, SKU HQEH3ZWJVT46JHRG.
How it became this figure: first 100 GB/month free across the account (SKU PB257JUQ8U6E6UPM), then $0.09/GB to 10340 GB, $0.085/GB to 51300 GB, $0.07/GB to 153700 GB, $0.05/GB beyond
$0.00
Storage1.95
AWS Price List API · KYVYY29G957PKY3B
This price comes from the official AWS Price List API, SKU KYVYY29G957PKY3B.
How it became this figure: $0.115 per GB-month of gp3 storage, Single-AZ
$0.22

Azure Database for PostgreSQL Flexible Server

$16.09

Flexible Server · Burstable B1MS (1 vCore, 2 GiB)

Flexible Server plan
Azure Retail Prices API · 05116300-a5d3-5c8f-a80e-bc6bf8109556
This price comes from the official Azure Retail Prices API, SKU 05116300-a5d3-5c8f-a80e-bc6bf8109556.
How it became this figure: no base fee
$0.00
Compute: Burstable B1MS (1 vCore, 2 GiB)
Azure Retail Prices API · 699ee3c7-5e59-5284-a84a-52ec1ffaa320
This price comes from the official Azure Retail Prices API, SKU 699ee3c7-5e59-5284-a84a-52ec1ffaa320.
How it became this figure: $0.017/h × 730
$12.41
Storage1.95
Azure Retail Prices API · 05116300-a5d3-5c8f-a80e-bc6bf8109556
This price comes from the official Azure Retail Prices API, SKU 05116300-a5d3-5c8f-a80e-bc6bf8109556.
How it became this figure: $0.115/GB-month; smallest disk 32 GiB
$3.68
Egress1.91
Azure Retail Prices API · 9995d93a-7d35-4d3f-9c69-7a7fea447ef4
This price comes from the official Azure Retail Prices API, SKU 9995d93a-7d35-4d3f-9c69-7a7fea447ef4.
How it became this figure: first 100 GB/month free, then tiered internet egress
$0.00

10K users

Amazon RDS for PostgreSQL costs $6.54 less a month; Azure Database for PostgreSQL Flexible Server costs 1.1× as much.

Amazon RDS for PostgreSQL

$96.42

On-Demand · db.t4g.large

On-Demand plan
AWS Price List API · 6W8ECRFVDATCER7J
This price comes from the official AWS Price List API, SKU 6W8ECRFVDATCER7J.
How it became this figure: no base fee; billed per resource
$0.00
Instance: db.t4g.large
AWS Price List API · 4PGJSRCJ7V3KWVEN
This price comes from the official AWS Price List API, SKU 4PGJSRCJ7V3KWVEN.
How it became this figure: $0.129/h × 730
$94.17
Egress19
AWS Price List API · HQEH3ZWJVT46JHRG
This price comes from the official AWS Price List API, SKU HQEH3ZWJVT46JHRG.
How it became this figure: first 100 GB/month free across the account (SKU PB257JUQ8U6E6UPM), then $0.09/GB to 10340 GB, $0.085/GB to 51300 GB, $0.07/GB to 153700 GB, $0.05/GB beyond
$0.00
Storage20
AWS Price List API · KYVYY29G957PKY3B
This price comes from the official AWS Price List API, SKU KYVYY29G957PKY3B.
How it became this figure: $0.115 per GB-month of gp3 storage, Single-AZ
$2.25

Azure Database for PostgreSQL Flexible Server

$103

Flexible Server · Burstable B2ms (2 vCore, 8 GiB)

Flexible Server plan
Azure Retail Prices API · 05116300-a5d3-5c8f-a80e-bc6bf8109556
This price comes from the official Azure Retail Prices API, SKU 05116300-a5d3-5c8f-a80e-bc6bf8109556.
How it became this figure: no base fee
$0.00
Compute: Burstable B2ms (2 vCore, 8 GiB)
Azure Retail Prices API · 4ee1aa81-d37a-5b90-8b9e-c35f47fe66ac
This price comes from the official Azure Retail Prices API, SKU 4ee1aa81-d37a-5b90-8b9e-c35f47fe66ac.
How it became this figure: $0.136/h × 730
$99.28
Storage20
Azure Retail Prices API · 05116300-a5d3-5c8f-a80e-bc6bf8109556
This price comes from the official Azure Retail Prices API, SKU 05116300-a5d3-5c8f-a80e-bc6bf8109556.
How it became this figure: $0.115/GB-month; smallest disk 32 GiB
$3.68
Egress19
Azure Retail Prices API · 9995d93a-7d35-4d3f-9c69-7a7fea447ef4
This price comes from the official Azure Retail Prices API, SKU 9995d93a-7d35-4d3f-9c69-7a7fea447ef4.
How it became this figure: first 100 GB/month free, then tiered internet egress
$0.00

100K users

Amazon RDS for PostgreSQL

$729

On-Demand · db.r7g.2xlarge

On-Demand plan
AWS Price List API · 6W8ECRFVDATCER7J
This price comes from the official AWS Price List API, SKU 6W8ECRFVDATCER7J.
How it became this figure: no base fee; billed per resource
$0.00
Instance: db.r7g.2xlarge
AWS Price List API · X87KE8BUG8YVW8UA
This price comes from the official AWS Price List API, SKU X87KE8BUG8YVW8UA.
How it became this figure: $0.956/h × 730
$697.88
Egress191
AWS Price List API · HQEH3ZWJVT46JHRG
This price comes from the official AWS Price List API, SKU HQEH3ZWJVT46JHRG.
How it became this figure: first 100 GB/month free across the account (SKU PB257JUQ8U6E6UPM), then $0.09/GB to 10340 GB, $0.085/GB to 51300 GB, $0.07/GB to 153700 GB, $0.05/GB beyond
$8.17
Storage195
AWS Price List API · KYVYY29G957PKY3B
This price comes from the official AWS Price List API, SKU KYVYY29G957PKY3B.
How it became this figure: $0.115 per GB-month of gp3 storage, Single-AZ
$22.46

Azure Database for PostgreSQL Flexible Server

—

doesn't meet: ram GB 49

Features

Features of each offering
Feature	Amazon RDS for PostgreSQL	Azure Database for PostgreSQL Flexible Server
Automatic backups	Yes · every plan AWS Price List API · 6W8ECRFVDATCER7J This price comes from the official AWS Price List API, SKU `6W8ECRFVDATCER7J`. How it became this figure: automated backups to S3	Yes · every plan Azure Retail Prices API · 6ba9ca07-608a-58f0-9bf7-549e2a888f5f This price comes from the official Azure Retail Prices API, SKU `6ba9ca07-608a-58f0-9bf7-549e2a888f5f`. How it became this figure: backup storage up to 100% of provisioned storage is free; $0.095/GB-month beyond
Point in time recovery	Yes · every plan AWS Price List API · 6W8ECRFVDATCER7J This price comes from the official AWS Price List API, SKU `6W8ECRFVDATCER7J`. How it became this figure: point-in-time restore from automated backups	Yes · every plan Azure Retail Prices API · 6ba9ca07-608a-58f0-9bf7-549e2a888f5f This price comes from the official Azure Retail Prices API, SKU `6ba9ca07-608a-58f0-9bf7-549e2a888f5f`. How it became this figure: backup storage up to 100% of provisioned storage is free; $0.095/GB-month beyond
High availability	Add-on · db.t4g.micro Multi-AZ $23.36 / mo on On-Demand AWS Price List API · RGZ43Q28J3F87JYA This price comes from the official AWS Price List API, SKU `RGZ43Q28J3F87JYA`. How it became this figure: $0.032/h × 730	Add-on · General Purpose D-series 2 vCore (2 vCore, 8 GiB) zone-redundant HA $259.88 / mo on Flexible Server Azure Retail Prices API · 71f7052a-b259-5928-b57b-d6fbbc1c8cd1 This price comes from the official Azure Retail Prices API, SKU `71f7052a-b259-5928-b57b-d6fbbc1c8cd1`. How it became this figure: $0.178/h × 2 × 730; primary plus standby
Read replicas	Not listed	Not listed
Connection pooling	Not listed	Not listed
Branching	Not listed	Not listed
Private networking	Not listed	Not listed

“Not listed” means the published pricing does not name the feature; it may exist outside the pricing page.

All Amazon RDS for PostgreSQL prices All Azure Database for PostgreSQL Flexible Server prices