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PolarDB:Billing rules for compute resources

Last Updated:Jul 24, 2026

PolarDB for PostgreSQL (distributed edition) compute resources include compute nodes (CNs) and data nodes (DNs). This product supports three billing methods: pay-as-you-go, and subscription. The price varies based on the node specifications and the billing method.

Compute resource nodes are available in two series: General-purpose and Dedicated.

  • General-purpose: Clusters on the same server share idle compute resources, such as CPU. This resource sharing provides cost savings.

  • Dedicated: Each cluster has exclusive access to its allocated compute resources, such as CPU, and does not share them with other clusters on the same server. This provides more stable and reliable performance.

Note
  • When you purchase a cluster, one read-only node is added by default for the primary CN and the primary DN. The specifications of this read-only node are the same as those of the primary CN and primary DN in the primary zone or primary data center. This node is billed separately.

  • You receive a 25% discount on the unit price of each read-only node added to a CN/DN.

Pay-as-you-go

With the pay-as-you-go billing method, you do not pay upfront when you create a database cluster. Instead, you are charged for the compute resources that you use. The compute nodes and data nodes of the cluster are billed hourly, and fees are deducted from your account on an hourly basis.

The following tables show the hourly prices for different pay-as-you-go compute node specifications in some regions.

Note
  • The prices in the following tables are for a single node.

  • To improve the read performance of CNs and DNs, one read-only node is added for each CN and DN in a PolarDB for PostgreSQL (distributed edition) cluster by default.

Price per compute node (USD/hour)

Dedicated specifications

Node specification code

CPU and memory

Number of CN/DN read-only nodes

The Chinese mainland

China (Hong Kong)

Singapore

Malaysia (Kuala Lumpur)

Indonesia (Jakarta)

Philippines (Manila)

Japan (Tokyo)

South Korea (Seoul)

Germany (Frankfurt)

polar.pg.x4.medium

2-core 8 GB

0

0.156

0.250

0.250

0.250

0.234

0.218

0.250

0.250

0.218

1

0.117

0.188

0.188

0.188

0.176

0.164

0.188

0.188

0.164

polar.pg.x8.medium

2-core 16 GB

0

0.259

0.414

0.414

0.414

0.388

0.362

0.414

0.414

0.362

1

0.194

0.310

0.310

0.310

0.291

0.272

0.310

0.310

0.272

polar.pg.x4.large

4-core 16 GB

0

0.313

0.500

0.500

0.500

0.469

0.437

0.500

0.500

0.437

1

0.234

0.375

0.375

0.375

0.352

0.328

0.375

0.375

0.328

polar.pg.x8.large

4-core 32 GB

0

0.502

0.804

0.804

0.804

0.753

0.703

0.804

0.804

0.703

1

0.377

0.603

0.603

0.603

0.565

0.603

0.603

0.603

0.603

polar.pg.x4.xlarge

8-core 32 GB

0

0.626

1.001

1.001

1.001

0.938

0.876

1.001

1.001

0.876

1

0.469

0.751

0.751

0.751

0.704

0.657

0.751

0.751

0.657

polar.pg.x8.xlarge

8-core 64 GB

0

1.005

1.607

1.607

1.607

1.507

1.406

1.607

1.607

1.406

1

0.753

1.205

1.205

1.205

1.13

1.054

1.205

1.205

1.054

polar.pg.x4.2xlarge

16-core 64 GB

0

1.251

2.002

2.002

2.002

1.877

1.752

2.002

2.002

1.752

1

0.938

1.501

1.501

1.501

1.408

1.314

1.501

1.501

1.314

polar.pg.x8.2xlarge

16-core 128 GB

0

2.009

3.214

3.214

3.214

3.014

2.813

3.214

3.214

2.813

1

1.507

2.411

2.411

2.411

2.26

2.109

2.411

2.411

2.109

polar.pg.x4.4xlarge

32-core 128 GB

0

2.502

4.004

4.004

4.004

3.753

3.503

4.004

4.004

3.503

1

1.877

3.001

3.001

3.001

2.815

2.627

3.001

3.001

2.627

polar.pg.x8.4xlarge

32-core 256 GB

0

4.018

6.429

6.429

6.429

6.027

5.625

6.429

6.429

5.625

1

3.014

4.822

4.822

4.822

4.52

4.219

4.822

4.822

4.219

polar.pg.x4.6xlarge

48-core 192 GB

0

3.753

6.005

6.005

6.005

5.63

5.255

6.005

6.005

5.255

1

2.815

4.504

4.504

4.504

4.223

3.941

4.504

4.504

3.941

polar.pg.x8.6xlarge

48-core 384 GB

0

6.027

9.643

9.643

9.643

9.041

8.438

9.643

9.643

8.438

1

4.52

7.232

7.232

7.232

6.78

6.328

7.232

7.232

6.328

polar.pg.x4.8xlarge

64-core 256 GB

0

5.005

8.007

8.007

8.007

7.507

7.006

8.007

8.007

7.006

1

3.753

6.005

6.005

6.005

5.63

5.255

6.005

6.005

5.255

polar.pg.x8.8xlarge

64-core 512 GB

0

8.036

12.858

12.858

12.858

12.054

11.251

12.858

12.858

11.251

1

6.027

9.643

9.643

9.643

9.041

8.438

9.643

9.643

8.438

polar.pg.x8.12xlarge

88-core 710 GB

0

12.054

19.287

19.287

19.287

18.081

16.876

19.287

19.287

16.876

1

9.041

14.465

14.465

14.465

13.561

12.657

14.465

14.465

12.657

polar.pg.x8.15xlarge

120-core 920 GB

0

15.068

24.108

24.108

24.108

22.602

21.095

24.108

24.108

21.095

1

11.301

18.081

18.081

18.081

16.951

15.821

18.081

18.081

15.821

General-purpose specifications

Node specification code

CPU and memory

Number of CN/DN read-only nodes

The Chinese mainland

China (Hong Kong)

Singapore

Malaysia (Kuala Lumpur)

Indonesia (Jakarta)

Philippines (Manila)

Japan (Tokyo)

South Korea (Seoul)

Germany (Frankfurt)

polar.pg.g2.medium

2-core 4 GB

0

0.078

0.125

0.125

0.125

0.117

0.109

0.125

0.125

0.109

1

0.059

0.094

0.094

0.094

0.088

0.082

0.094

0.094

0.082

polar.pg.g4.medium

2-core 8 GB

0

0.132

0.212

0.212

0.212

0.199

0.185

0.212

0.212

0.185

1

0.099

0.159

0.159

0.159

0.149

0.139

0.159

0.159

0.139

polar.pg.g2.large

4-core 8 GB

0

0.156

0.250

0.250

0.250

0.235

0.219

0.250

0.250

0.219

1

0.117

0.188

0.188

0.188

0.176

0.164

0.188

0.188

0.164

polar.pg.g4.large

4-core 16 GB

0

0.265

0.423

0.423

0.423

0.397

0.371

0.423

0.423

0.371

1

0.199

0.318

0.318

0.318

0.298

0.278

0.318

0.318

0.278

polar.pg.g2.xlarge

8-core 16 GB

0

0.313

0.5

0.5

0.5

0469

0.438

0.5

0.500

0.438

1

0.235

0.375

0.375

0.375

0.352

0.328

0.375

0.375

0.328

polar.pg.g4.xlarge

8-core 32 GB

0

0.529

0.846

0.846

0.846

0.794

0.741

0.846

0.846

0.741

1

0.397

0.635

0.635

0.635

0.595

0.556

0.635

0.635

0.556

polar.pg.g2.2xlarge

16-core 32 GB

0

0.656

1.001

1.001

1.001

0.938

0.876

1.001

1.001

0.876

1

0.469

0.751

0.751

0.751

0.704

0.657

0.751

0.751

0.657

Subscription

With the subscription billing method, you prepay for the compute nodes of your cluster when you create it.

The following tables show the monthly prices for different subscription compute node specifications in some regions.

Note
  • The prices in the following tables are for a single node.

  • To improve the read performance of CNs and DNs, one read-only node is added for each CN and DN in a PolarDB for PostgreSQL (distributed edition) cluster by default.

Price per compute node (USD/month)

Dedicated specifications

Node specification code

CPU and memory

Number of CN/DN read-only nodes

The Chinese mainland

China (Hong Kong)

Singapore

Malaysia (Kuala Lumpur)

Indonesia (Jakarta)

Philippines (Manila)

Japan (Tokyo)

South Korea (Seoul)

Germany (Frankfurt)

polar.pg.x4.medium

2-core 8 GB

0

75.19

120.3

120.3

120.3

112.78

105.26

120.3

120.3

105.26

1

56.39

90.23

90.23

90.23

84.59

78.95

90.23

90.23

78.95

polar.pg.x8.medium

2-core 16 GB

0

124.03

198.50

198.5

198.50

186.09

173.68

198.5

198.5

173.68

1

93.05

148.87

148.87

148.87

139.57

130.26

148.87

148.87

130.26

polar.pg.x4.large

4-core 16 GB

0

150.38

240.6

240.6

240.6

225.56

210.53

240.6

240.6

210.53

1

112.78

180.45

180.45

180.45

169.17

157.89

180.45

180.45

157.89

polar.pg.x8.large

4-core 32 GB

0

248.12

396.99

396.99

396.99

372.18

347.37

396.99

396.99

347.37

1

186.09

297.74

297.74

297.74

279.14

260.53

297.74

297.74

260.53

polar.pg.x4.xlarge

8-core 32 GB

0

300.75

481.2

481.2

481.2

451.13

421.05

481.2

481.2

421.05

1

225.56

360.9

360.9

360.9

338.35

315.79

360.9

360.9

315.79

polar.pg.x8.xlarge

8-core 64 GB

0

496.24

793.98

793.98

793.98

744.36

694.74

793.98

793.98

694.74

1

372.18

595.49

595.49

595.49

558.27

521.05

595.49

595.49

521.05

polar.pg.x4.2xlarge

16-core 64 GB

0

601.5

962.41

962.41

962.41

902.26

842.11

962.41

962.41

842.11

1

451.13

721.8

721.8

721.8

676.69

631.58

721.8

721.8

631.58

polar.pg.x8.2xlarge

16-core 128 GB

0

992.48

1,587.97

1,587.97

1,587.97

1,488.72

1,389.

47

1,587.97

1,587.97

1,389.

47

1

744.36

1,190.98

1,190.98

1,190.98

1,116.54

1,042.11

1,190.98

1,190.98

1,042.11

polar.pg.x4.4xlarge

32-core 128 GB

0

1,203.01

1924.81

1,924.81

1,924.81

1,804.51

1,684.21

1,924.81

1,924.81

1,684.21

1

902.26

1,443.61

1,443.61

1,443.61

1,353.38

1,263.16

1,443.61

1,443.61

1,263.16

polar.pg.x8.4xlarge

32-core 256 GB

0

1,984.96

3,175.94

3,175.94

3,175.94

2,977.44

2,778.95

3,175.94

3,175.94

2,778.95

1

1,488.72

2,381.95

2,381.95

2,381.95

2,233.08

2,084.21

2,381.95

2,381.95

2,084.21

polar.pg.x4.6xlarge

48-core 192 GB

0

1,804.51

2,887.22

2,887.22

2,887.22

2,706.77

2,526.32

2,887.22

2,887.22

2,526.32

1

1,353.38

2,165.41

2,165.41

2,165.41

2,030.08

1,894.74

2,165.41

2,165.41

1,894.74

polar.pg.x8.6xlarge

48-core 384 GB

0

2,977.44

4,763.91

4,763.91

4,763.91

4,466.17

4,168.42

4,763.91

4,763.91

4,168.42

1

2,233.08

3,572.93

3,572.93

3,572.93

3,349.62

3,126.32

3,572.93

3,572.93

3,126.32

polar.pg.x4.8xlarge

64-core 256 GB

0

2,406.02

3,849.62

3,849.62

3,849.62

3,609.02

3,368.42

3,849.62

3,849.62

3,368.42

1

1,804.51

2,887.22

2,887.22

2,887.22

2,706.77

2,526.32

2,887.22

2,887.22

2,526.32

polar.pg.x8.8xlarge

64-core 512 GB

0

3,969.92

6,351.88

6,351.88

6,351.88

5,954.89

5,557.89

6,351.88

6,351.88

5,557.89

1

2,977.44

4,763.91

4,763.91

4,763.91

4,466.17

4,168.42

4,763.91

4,763.91

4,168.42

polar.pg.x8.12xlarge

88-core 710 GB

0

5,954.89

9,527.82

9,527.82

9,527.82

9,527.82

8,336.84

9,527.82

9,527.82

8,336.84

1

4,466.17

7,145.86

7,145.86

7,145.86

6,699.25

6,252.63

7,145.86

7,145.86

6,252.63

polar.pg.x8.15xlarge

120-core 920 GB

0

7,443.61

11,909.77

11,909.77

11,909.77

11,165.41

10,421.05

11,909.77

11,909.77

10,421.05

1

5,582.71

8,932.33

8,932.33

8,932.33

8,374.06

7,815.79

8,932.33

8,932.33

7,815.79

General-purpose specifications

Node specification code

CPU and memory

Number of CN/DN read-only nodes

The Chinese mainland

China (Hong Kong)

Singapore

Malaysia (Kuala Lumpur)

Indonesia (Jakarta)

Philippines (Manila)

Japan (Tokyo)

South Korea (Seoul)

Germany (Frankfurt)

polar.pg.g2.medium

2-core 4 GB

0

37.59

60.15

60.15

60.15

56.39

52.63

60.15

60.15

52.63

1

28.2

45.11

45.11

45.11

42.29

39.47

45.11

45.11

39.47

polar.pg.g4.medium

2-core 8 GB

0

63.91

102.26

102.26

102.26

95.86

89.47

102.26

102.26

89.47

1

47.93

76.69

76.69

76.69

71.90

67.11

76.69

76.69

67.11

polar.pg.g2.large

4-core 8 GB

0

75.19

120.3

120.3

120.3

112.78

105.26

120.3

120.3

105.26

1

56.39

90.23

90.23

90.23

84.59

78.95

90.23

90.23

78.95

polar.pg.g4.large

4-core 16 GB

0

127.82

204.51

204.51

204.51

191.73

178.95

204.51

204.51

178.95

1

95.86

153.38

153.38

153.38

143.8

134.21

153.38

153.38

134.21

polar.pg.g2.xlarge

8-core 16 GB

0

150.38

240.6

240.6

240.6

225.56

210.53

240.6

240.6

210.53

1

112.78

180.45

180.45

180.45

169.17

157.89

180.45

180.45

157.89

polar.pg.g4.xlarge

8-core 32 GB

0

255.64

409.02

409.02

409.02

383.46

357.89

409.02

409.02

357.89

1

191.73

306.77

306.77

306.77

287.59

268.42

306.77

306.77

268.42

polar.pg.g2.2xlarge

16-core 32 GB

0

300.75

481.2

481.2

481.2

451.13

421.05

481.2

481.2

421.05

1

225.56

360.9

360.9

360.9

338.35

315.79

360.9

360.9

315.79