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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
HP 27-a230
HP 27-a230
2.4 Ghz Intel Celeron CPU, 16 GB RAM

98%
Sleep: 0.2W
Idle: 13.2W
Off: 0.2W
£0.04 £9.11 From £1364
2
Apple iMac 21.5
Apple iMac 21.5"
1.4 Ghz Intel Core i5 CPU, 8 GB RAM

94%
Sleep: 0.9W
Idle: 5.2W
Off: 0.3W
£0.04 £10.56 From £454
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 £12.11 From £693
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 £12.88 From £583
5
Lenovo 10
Lenovo 10
1.7 Ghz Intel i3-4005U CPU, 16 GB RAM

88%
Sleep: 0.7W
Idle: 11.2W
Off: 0.9W
£0.05 £12.91 From £925
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

85%
Sleep: 4.3W
Idle: 8.4W
Off: 0.8W
£0.05 £13.07 From £1629
7
HP 24
HP 24
1.6 Ghz AMD A8 CPU, 8 GB RAM

74%
Sleep: 0.6W
Idle: 10.5W
Off: 0.3W
£0.06 £16.07 From £631
8
Lenovo 10QG
Lenovo 10QG
2.0 Ghz Intel Core i7 CPU, 32 GB RAM

72%
Sleep: 1.3W
Idle: 16.3W
Off: 0.7W
£0.06 £16.56 From £683
9
HP 22
HP 22
1.6 Ghz AMD A8 CPU, 8 GB RAM

71%
Sleep: 0.6W
Idle: 10.2W
Off: 0.3W
£0.06 £16.79 From £449
10
HP 22-3
HP 22-3
1.4 Ghz AMD Kabini CPU, 16 GB RAM

71%
Sleep: 1.6W
Idle: 13.9W
Off: 0.2W
£0.06 £16.82 From £449
11
Lenovo 5150
Lenovo 5150
1.8 Ghz Intel G460 CPU, 16 GB RAM

60%
Sleep: 1.5W
Idle: 14.5W
Off: 0.9W
£0.07 £17.10 From £450
12
Lenovo 10QV
Lenovo 10QV
2.9 Ghz Intel Core i3 CPU, 32 GB RAM

55%
Sleep: 1.4W
Idle: 13.7W
Off: 0.4W
£0.07 £17.20 From £787
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

50%
Sleep: 1.2W
Idle: 5.1W
Off: 0.8W
£0.07 £18.44 From £2000
14
MSI AP240
MSI AP240
3.8 Ghz Intel Core i3 CPU, 2 GB RAM

48%
Sleep: 0.8W
Idle: 20.9W
Off: 0.6W
£0.07 £18.76 From £2960
15
Lenovo 10NR
Lenovo 10NR
2.8 Ghz Intel Pentium CPU, 32 GB RAM

48%
Sleep: 2.8W
Idle: 15.3W
Off: 0.8W
£0.07 £19.02 From £1000
16
Lenovo 10NX
Lenovo 10NX
2.8 Ghz Intel G3900 CPU, 32 GB RAM

43%
Sleep: 1W
Idle: 17.8W
Off: 0.6W
£0.08 £19.58 From £933
17
Apple MF886
Apple iMac (Retina 5K, 27", Late 2014) [MF886]
3.5 Ghz Intel Core i5 CPU, 8 GB RAM

38%
Sleep: 1.2W
Idle: 23.8W
Off: 0.2W
£0.08 £20.33 From £1790
18
Lenovo Thinkcentre M9350z
Lenovo Thinkcentre M9350z
2.9 Ghz Intel Haswell i5-4570T CPU, 2 GB RAM

27%
Sleep: 1.3W
Idle: 25W
Off: 1.1W
£0.09 £22.74 From £198
19
HP 23-r
HP 23-r
2.0 Ghz Intel Core i5 CPU, 16 GB RAM

24%
Sleep: 1.3W
Idle: 20.9W
Off: 0.2W
£0.09 £23.08 From £894
20
HP 27-b
HP 27-b
2.8 Ghz Intel Core i7 CPU, 16 GB RAM

23%
Sleep: 1.7W
Idle: 24.4W
Off: 0.3W
£0.09 £23.68 From £1157

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