2
Principled Technologies, Inc.: Energy consumption of seven Intel chipset motherboards
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
Watt hours
Energy consumption while idle for five minutes
(Lower numbers are better)
Asus P5B-VM SE
Asus P5E-VM DO
Asus P5K-VM
Gigabyte GA-
G33M-S2L
Intel DQ35JOE
Intel DQ45CB
Intel DQ45EK
As Figure 2 shows, compared to the
three Asus motherboard-based
systems, the Gigabyte
motherboard-based system, and the
Intel DQ35JOE system, the Intel
DQ45CB motherboard-based
system consumed from 10.3
percent to 28.9 percent less energy
while idle for five minutes and the
Intel DQ45EK motherboard-based
system consumed from 9.4 percent
to 28.2 percent less energy.
Figure 2: Energy consumption in watt-hours for the seven test systems while idle for five
minutes. Lower numbers are better.
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
Watt hours
Energy consumption: Excel 2007 Monte Carlo Black-
Scholes (Lower numbers are better)
Asus P5B-VM SE
Asus P5E-VM DO
Asus P5K-VM
Gigabyte GA-
G33M-S2L
Intel DQ35JOE
Intel DQ45CB
Intel DQ45EK
As Figure 3 shows, compared to the
three Asus motherboard-based
systems, the Gigabyte
motherboard-based system, and the
Intel DQ35JOE system, the Intel
DQ45CB motherboard-based
system consumed from 1.1 percent
to 28.7 percent less energy while
running the Microsoft Office 2007
Excel Monte Carlo workload and the
Intel DQ45EK motherboard-based
system consumed from 2.3 percent
to 29.5 percent less energy.
Figure 3: Energy consumption in watt-hours for the seven test systems while running the
Microsoft Office 2007 Excel Monte Carlo workload. Lower numbers are better.
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
Watt hours
Energy consumption: Creating a PDF while running a
Windows Defender Custom Scan (lower numbers are better)
Asus P5B-VM SE
Asus P5E-VM DO
Asus P5K-VM
Gigabyte GA-
G33M-S2L
Intel DQ35JOE
Intel DQ45CB
Intel DQ45EK
As Figure 4 shows, compared to the
three Asus motherboard-based
systems, the Gigabyte
motherboard-based system, and the
Intel DQ35JOE system, the Intel
DQ45CB motherboard-based
system consumed from 3.7 percent
to 33.3 percent less energy while
running the Microsoft Office 2007
Word to PDF conversion with
Microsoft Windows Defender
Custom Scan workload and the Intel
DQ45EK motherboard-based
system consumed from 29.6
percent to 51.3 percent less energy.
Figure 4: Energy consumption in watt-hours for the seven test systems while running
the Microsoft Office 2007 Word to PDF conversion with Microsoft Windows Defender
Custom Scan workload. Lower numbers are better.
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