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TEST RESULTS
BASELINE, with Integrated Graphics: First, here are the results of
our baseline results of the system with just its integrated graphics, without
a discrete video card. We'll also need the power consumption reading during
CPUBurn to estimate the actual power draw of discrete card later.
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VGA Test Bed: Baseline Results
(no discrete graphics card installed)
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System State
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CPU
Temp
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System Power
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AC
|
DC (Est.)
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Idle
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22°C
|
73W
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Unknown
|
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CPUBurn
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39°C
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144W
|
115W
|
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Ambient temperature: 21°C
Ambient noise level: 11 dBA
System noise level: 12 dBA
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PowerColor SCS3 HD4650:
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VGA Test Bed: PowerColor SCS3 HD4650
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System State
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Sys. Fan Speed
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SPL
@1m
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GPU
Temp 1
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GPU
Temp 2
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CPU
Temp
|
System Power
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AC
|
DC (Est.)
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Idle
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7V
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12 dBA
|
46°C
|
48°C
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23°C
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89W
|
67W
|
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CPUBurn
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47°C
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50°C
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42°C
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161W
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130W
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CPUBurn + FurMark
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81°C
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85°C
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43°C
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177W
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143W
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CPUBurn + FurMark
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9V
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15 dBA
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80°C
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83°C
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39°C
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177W
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143W
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CPUBurn + FurMark
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12V
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18 dBA
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73°C
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78°C
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29°C
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176W
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143W
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Ambient temperature: 21°C.
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Testing was initially conducted with the system's only case fan, a Nexus 120mm,
running at a paltry 7V. In this state, the card's cooler kept the GPU very cool
when idle: less than 50°C. When the system was stressed, GPU temperatures
stabilized in the low 80's which is more than adequate for a modern GPU —
they typically have tolerances above 100°C. The card was artifact free during
testing despite the lack of system airflow. When the system fan was sped up
to 9V, GPU temperatures were only marginally affected. At 12V, there was an
impressive 7-8°C improvement.
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