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All-in-One Computers ranked by annual running cost*

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Ranked by estimated annual power consumption* Cost / day Cost / year Prices
1
Apple iMac 21.5
Apple iMac 21.5"
1.4 Ghz Intel Core i5 CPU, 8 GB RAM

100%
Sleep: 0.9W
Idle: 5.2W
Off: 0.3W
£0.04 £11.52 From £474
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Apple iMac 21.5
Apple iMac 21.5" [iMac 21.5"]
1.4 Ghz Intel Core i5 CPU, 8 GB RAM

100%
Sleep: 0.9W
Idle: 5.2W
Off: 0.3W
£0.04 £11.52 From £1479
3
Dell OptiPlex 3050 AIO
Dell OptiPlex 3050 AIO
2.8 Ghz Intel Celeron CPU, 32 GB RAM

92%
Sleep: 1.7W
Idle: 9.7W
Off: 0.3W
£0.05 £13.21 From £385
4
HP 20
HP 20
1.6 Ghz AMD A8 CPU, 8 GB RAM

89%
Sleep: 0.7W
Idle: 9W
Off: 0.4W
£0.05 £14.05 From £705
5
Lenovo 10
Lenovo 10
1.7 Ghz Intel i3-4005U CPU, 16 GB RAM

85%
Sleep: 0.7W
Idle: 11.2W
Off: 0.9W
£0.05 £14.08 From £420
6
HP EliteOne 1000 G1 23.8-in Touch AiO
HP EliteOne 1000 G1 23.8-in Touch AiO
2.9 Ghz Intel Celeron CPU, 32 GB RAM

81%
Sleep: 4.3W
Idle: 8.4W
Off: 0.8W
£0.05 £14.26 From £1631
7
HP ProOne 600 G3 21.5-in Non-Touch All-in-One PC
HP ProOne 600 G3 21.5-in Non-Touch All-in-One PC
3.0 Ghz Intel Celeron CPU, 32 GB RAM

77%
Sleep: 1.4W
Idle: 10.6W
Off: 0.6W
£0.06 £14.92 From £1175
8
HP 24
HP 24
1.6 Ghz AMD A8 CPU, 8 GB RAM

73%
Sleep: 0.6W
Idle: 10.5W
Off: 0.3W
£0.07 £17.53 From £631
9
HP 22
HP 22
1.6 Ghz AMD A8 CPU, 8 GB RAM

69%
Sleep: 0.6W
Idle: 10.2W
Off: 0.3W
£0.07 £18.31 From £479
10
HP 22-3
HP 22-3
1.4 Ghz AMD Kabini CPU, 16 GB RAM

65%
Sleep: 1.6W
Idle: 13.9W
Off: 0.2W
£0.07 £18.35 From £479
11
Lenovo 5150
Lenovo 5150
1.8 Ghz Intel G460 CPU, 16 GB RAM

62%
Sleep: 1.5W
Idle: 14.5W
Off: 0.9W
£0.07 £18.65 From £2019
12
Lenovo 10QV
Lenovo 10QV
2.9 Ghz Intel Core i3 CPU, 32 GB RAM

58%
Sleep: 1.4W
Idle: 13.7W
Off: 0.4W
£0.07 £18.76 From £640
13
HP EliteOne 1000 G1 27-in 4K UHD AiO
HP EliteOne 1000 G1 27-in 4K UHD AiO
2.9 Ghz Intel Celeron CPU, 32 GB RAM

54%
Sleep: 1.2W
Idle: 5.1W
Off: 0.8W
£0.08 £20.11 From £1855
14
Lenovo 10NR
Lenovo 10NR
2.8 Ghz Intel Pentium CPU, 32 GB RAM

50%
Sleep: 2.8W
Idle: 15.3W
Off: 0.8W
£0.08 £20.75 From £1000
15
Lenovo 10NX
Lenovo 10NX
2.8 Ghz Intel G3900 CPU, 32 GB RAM

46%
Sleep: 1W
Idle: 17.8W
Off: 0.6W
£0.08 £21.35 From £914
16
Apple MF886
Apple iMac (Retina 5K, 27", Late 2014) [MF886]
3.5 Ghz Intel Core i5 CPU, 8 GB RAM

42%
Sleep: 1.2W
Idle: 23.8W
Off: 0.2W
£0.09 £22.17 From £1790
17
HP 27-b
HP 27-b
2.8 Ghz Intel Core i7 CPU, 16 GB RAM

39%
Sleep: 1.7W
Idle: 24.4W
Off: 0.3W
£0.10 £25.83 From £998
18
Lenovo 28A
Lenovo 28A
2.0 Ghz , 2 GB RAM

35%
Sleep: 3.6W
Idle: 3.6W
Off: 0.4W
£0.11 £27.79 From £874
19
Apple iMac 27
Apple iMac 27" 3.4 GHz Quad Core/8GB [MF472]
3.4 Ghz Intel Core i7 CPU, 32 GB RAM

31%
Sleep: 1W
Idle: 20.5W
Off: 0.2W
£0.11 £28.04 From £1320
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Apple iMac 27
Apple iMac 27" 3.2 GHz Quad Core/8GB [MF471]
3.2 Ghz Intel Core i7 CPU, 32 GB RAM

31%
Sleep: 1W
Idle: 20.5W
Off: 0.2W
£0.11 £28.04 From £4455

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