Approximate Desktop Energy Use In Watts Make & Model
Basic Specifications
Off
(plugged in)
Boot
(peak)
Moderate
Use
(range)
Quiescent
(5 minutes of no activity)
Sleep Apple iMac/Intel
24-inch
(purchased early 2009)
Core 2 Duo, 4.0 GB RAM, 640 GB hard drive, Mac OS 10.6.2 (clean)
1
141
146 - 154
88
(42 w/LCD in sleep)
1 Apple iMac/Intel
20-inch
(purchased early 2008)
Core 2 Duo, 2.0 GB RAM, 320 GB hard drive,
Microsoft Office Ultimate 2007, Mac OS 10.6.2 (clean)
1
105
117 - 118
72 - 73
(56 w/LCD in sleep)
1 Apple iMac/Intel
17-inch
(purchased early 2006)
Core Duo, 1.0 GB RAM,
Microsoft Office Professional Plus, 160 GB/7200 RPM hard drive, Mac OS 10.4.9 (clean)
1
72
60 - 61
not tested
3 Dell OptiPlex 980
wDell LCD
(purchased mid 2010)
Core i7, 4.0 GB RAM,
Windows 7 Professional (clean)
2
94
96
72-74
1 Dell OptiPlex 780
w/Dell LCD
(purchased late 2009)
Core 2 Duo, 4.0 GB RAM,
Office Professional 2007 Astroboy Netbook Plus Some Goodies Show Up Eee PC,
Windows 7 Professional (clean)
2
108
not tested
not tested
1 Dell OptiPlex 760
w/19-inch Dell LCD
(purchased late 2008)
Core 2 Duo, 2.0 GB RAM, 160 GB/7200 RPM hard drive, UltraSharp 1907FPV display,
Windows 7 Ultimate (clean)
1
116
95 - 111
81 - 83
(50 - 52 w/LCD off)
1 Dell OptiPlex 755
w/19-inch Dell LCD
(purchased late 2007)
Core 2 Duo, 2.0 GB RAM, 160 GB/7200 RPM hard drive, UltraSharp 1906FPV display,
Windows 7 Enterprise 64 Bit, Windows Vista Business (clean)
1
115
126 - 130
89
(57 w/LCD off)
2 Dell OptiPlex 745
w/19-inch Dell LCD
(purchased mid 2006)
Core 2 Duo, 2.0 GB RAM,
Office Home And Business 2010 Key, 100 GB/7200 RPM hard drive, UltraSharp 1907FPV display, Windows Vista Enterprise (clean)
1
145
111 - 133
not tested
2 Dell OptiPlex 740
w/19-inch Dell LCD
(purchased late 2006)
Athlon X2, 2.0 GB RAM, 100 GB/7200 RPM hard drive, UltraSharp 1907FP display, Windows XP Professional SP2 (clean)
1
151
108 - 138
not tested
3 IBM ThinkCentre M52
w/19-inch IBM LCD
(purchased mid 2006)
2.8 GHz Pentium D 820, 1.0 GB RAM, 160 GB/7200 RPM hard drive, UltraSharp 1703FP display, Windows Vista Enterprise (clean)
1
200
156 - 194
not tested
1