All-in-One Computers ranked by annual running cost*
Electricity saving of £44.13/year
| Ranked by estimated annual power consumption* | Cost / day | Cost / year | Prices |
| 1 
|
Apple iMac 21.5" [ME699]
3.3Ghz Intel Core i7
|
 100%
|
Sleep: 1.3W Idle: 11.4W Off: 0.2W |
£0.04 | £11.62 | From £2413 |
  |
| =
|
Apple iMac 21.5" [ME699]
3.3Ghz Intel Core i7
|
93%
|
Sleep: 1.3W Idle: 11.4W Off: 0.2W |
£0.04 | £11.62 | From £2413 |
|
| =
|
Apple iMac 21.5" [ME794]
3.3Ghz Intel Core i7
|
87%
|
Sleep: 1.3W Idle: 11.4W Off: 0.2W |
£0.04 | £11.62 | From £2413 |
|
| =
|
Apple iMac 21.5" [ME794]
3.3Ghz Intel Core i7
|
80%
|
Sleep: 1.3W Idle: 11.4W Off: 0.2W |
£0.04 | £11.62 | From £2413 |
|
| 5
|
Apple iMac 21.5" [ME791]
3.1Ghz Intel Core i7
|
73%
|
Sleep: 1.3W Idle: 13.1W Off: 0.2W |
£0.05 | £13.27 | From £2413 |
|
| 6 
|
Apple iMac 21.5" [iMac 21.5"]
1.4 Ghz Intel Core i5 CPU, 8 GB RAM
|
67%
|
Sleep: 0.9W Idle: 5.2W Off: 0.3W |
£0.07 | £18.14 | From £2413 |
| 7 
|
Apple iMac 21.5" [ME086]
2.7 GHz Quad Core/8GB
|
60%
|
Sleep: 1W Idle: 10.5W Off: 0.3W |
£0.08 | £21.92 | From £2413 |
|
| =
|
Apple iMac 21.5" [MF469]
2.7 GHz Quad Core/8GB
|
53%
|
Sleep: 1W Idle: 10.5W Off: 0.3W |
£0.08 | £21.92 | From £2413 |
|
| 9 
|
Apple iMac 21.5" [ME087]
2.9 GHz Quad Core/8GB
|
47%
|
Sleep: 1W Idle: 11.6W Off: 0.3W |
£0.08 | £22.06 | From £2413 |
|
| = 
|
Apple iMac 21.5" [MF470]
2.9 GHz Quad Core/8GB
|
40%
|
Sleep: 1W Idle: 11.6W Off: 0.3W |
£0.08 | £22.06 | From £2413 |
|
| 11 
|
Lenovo ThinkCentre M820z [10SC]
3.2 Ghz Intel i7-8700 CPU, 32 GB RAM
|
33%
|
Sleep: 1W Idle: 13.7W Off: 0.6W |
£0.09 | £23.38 | From £1084 |
 |
| 12 
|
Lenovo ThinkCentre M920z [10S6]
3.1 Ghz Intel Core i9 CPU, 32 GB RAM
|
27%
|
Sleep: 2.2W Idle: 11.2W Off: 1.8W |
£0.09 | £24.05 | From £1403 |
|
| 13 
|
Apple 27-inch iMac with Retina 5K Display [A2115]
3.1 Ghz Intel Core i5 CPU, 8 GB RAM
|
20%
|
Sleep: 1.4W Idle: 10.3W Off: 0.4W |
£0.10 | £27.19 | From £1689 |
|
| 14
|
Apple 27-inch iMac with Retina 5K Display [A2115]
3.6 Ghz Intel Core i9 CPU, 128 GB RAM
|
13%
|
Sleep: 3.3W Idle: 24.5W Off: 0.3W |
£0.17 | £43.15 | From £1689 |
|
| 15 
|
Dell Precision 5720 All-in-One
3.6 Ghz Intel Core i7 CPU, 64 GB RAM
|
7%
|
Sleep: 2W Idle: 23.2W Off: 0.3W |
£0.21 | £55.75 | From £1754 |
 |
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