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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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System Power
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AC
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DC (Est.)
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Idle
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75W
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Unknown
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CPUBurn
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151W
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121W
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Ambient temperature: 22°C
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Asus EAH5750 Formula:
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VGA Test Bed: Asus EAH5750 Formula
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System
State
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GPU Fan Speed
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SPL
@1m
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GPU Temp
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System Power
|
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AC
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DC
|
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Idle
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36%
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17~18 dBA
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41°C
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104W
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80W
|
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CPUBurn
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43°C
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180W
|
146W
|
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CPUBurn + ATITool
|
39%
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18 dBA
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67°C
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221W
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181W
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CPUBurn + FurMark
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43%
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18~19 dBA
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79°C
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241W
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198W
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N/A
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75%
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25 dBA
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N/A
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N/A
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N/A
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100%
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30 dBA
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Ambient temperature: 22°C
Ambient noise level: 11 dBA
System noise level: 12 dBA
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The Formula heatsink cooled the GPU more than sufficiently with an idle temperature
of only 41°C. Full load brought the GPU core to 79°C which is cool enough
by modern standards. The cooler's fan varied only slightly in speed between
idle and load, increasing from 36% to 43% of its maximum speed. Between these
speeds, the fan generated some bearing chatter and a slight whine when listened
to at close proximity. Inside a case at a distance of a meter, most of the fan's
negative aspects were well muffled, sounding fairly smooth. The amount of noise
produced was reasonable at load.
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EAH5750 Formula idling.
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Noise & Cooling Comparison
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Card
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Idle
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Load
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SPL @1m
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GPU Temp
|
SPL @1m
|
GPU Temp
|
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ATI HD 4770
|
15 dBA
|
53°C
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17 dBA
|
74°C
|
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ATI HD 4830
|
14 dBA
|
56°C
|
20~21 dBA
|
86°C
|
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Asus EAH5750 Formula
|
17~18 dBA
|
41°C
|
18~19 dBA
|
79°C
|
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ATI HD 4870
|
13 dBA
|
82°C
|
20 dBA
|
91°C
|
|
HIS HD 4890 Turbo
|
15 dBA
|
66°C
|
26 dBA
|
80°C
|
|
PowerColor HD 5850
|
18 dBA
|
40°C
|
24 dBA
|
83°C
|
|
Ambient temperature: 22°C
Ambient noise level: 11 dBA
System noise level: 12 dBA
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Compared to previous generation ATI cards, it runs fairly cool and quiet on
load, but like the HD 5850,
is unnecessarily loud when idle. If the minimum fan speed were lowered, it could
still adequately cool the GPU while potentially being close to inaudible in
a system sitting on the desktop.
SmartDoctor
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SmartDoctor.
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Asus' SmartDoctor utility allows for overclocking and customizable control
of the fan with temperature boundaries that can be set manually. However, the
minimum fan speed was only 30% which, noise-wise, was indiscernible from the
automatic minimum speed, so it isn't very useful for this particular card. The
program also needs to be running or fan control will revert to default.
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