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TEST RESULTS
Our test system is fairly basic, featuring a Core 2 E7200 (65W TDP) cooled
by an Arctic Cooling Alpine 7 Pro connected to a variable DC fan controller
so the fan's power draw does not come into play. The rest of the system consists
of 1GB of Corsair memory (128MB assigned to video memory), an Asus Blu-ray drive,
a 5400RPM notebook hard drive and an OEM Seasonic 400W power supply. The operating
system used is Vista Home Premium SP1 (32-bit).
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Test Results
|
|
Test State
|
Mean
CPU
|
Peak
CPU
|
System Power
|
|
Idle
|
N/A
|
35W
|
|
Rush Hour
(H.264)
|
32%
|
45%
|
~42W
|
|
Coral Reef
(WMV-HD)
|
24%
|
35%
|
~41W
|
|
Drag Race
(VC-1)
|
36%
|
45%
|
~46W
|
|
Disturbia
(Blu-ray H.264)
|
71%
|
93%
|
~54W
|
|
CPU Load
|
N/A
|
64W
|
|
CPU + GPU
Load
|
N/A
|
65W
|
Our DG41MJ-based system was fairly energy efficient, idling at 35W and using
up to 65W on full load. It also passed all of video playback tests with ease
with the exception of Disturbia, a H.264-encoded scene played from an actual
Blu-ray disc source. It played smoothly, but CPU usage was high, 71% mean and
93% peak. We fiddled with our system by increasing the amount of system/video
memory and using different software players but nothing we tried improved performance
on this particular clip. We surmise this is the result of the X4500 IGP lacking
variable length decoding.
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Comparison: G41 vs. G45 vs. GF9300
|
|
Test State
|
Intel
DG41MJ
|
Intel
DG45FC
|
Zotac
GF9300-ITX
|
|
Idle
|
N/A
|
35W
|
N/A
|
35W
|
N/A
|
35W
|
|
Rush Hour
(H.264)
|
32%
|
~42W
|
30%
|
~42W
|
7%
|
40W
|
|
Coral Reef
(WMV-HD)
|
24%
|
~41W
|
25%
|
~43W
|
34%
|
~44W
|
|
Drag Race
(VC-1)
|
36%
|
~46W
|
40%
|
~47W
|
56%
|
~51W
|
|
Disturbia
(Blu-ray H.264)
|
71%
|
~54W
|
N/A
|
32%
|
~49W
|
|
CPU Load
|
N/A
|
64W
|
N/A
|
64W
|
N/A
|
64W
|
|
CPU + GPU
Load
|
N/A
|
65W
|
N/A
|
65W
|
N/A
|
65W
|
The board's power consumption was right on par with the DG45FC,
with only negligible differences. CPU utilization during video playback was
also similar, though we tested the DG45FC before we added an actual Blu-ray
scene to our video test suite so we can't compare the two in that regard. The
Zotac GeForce 9300-ITX
used 5W more during VC-1 playback, but 5W less during Blu-ray playback, probably
due to its full hardware acceleration support for H.264.
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