Radeon HD 5750 & HD 5450 Graphics Cards

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Asus EAH5750 Formula 1GB:

VGA Test Bed: Asus EAH5750 Formula
System
State
VGA Fan Speed
SPL
@1m
GPU Temp
System Power
AC
DC
Idle
36%
17~18 dBA
41°C
104W
80W
CPUBurn
43°C
180W
146W
CPUBurn + ATITool
39%
18 dBA
67°C
221W
181W
CPUBurn + FurMark
43%
18~19 dBA
79°C
241W
198W
N/A
75%
25 dBA
N/A
N/A
N/A
100%
30 dBA
Ambient temperature: 22°C
Ambient noise level: 11 dBA
System noise level: 12 dBA

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 only 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, but far too loud when idle. Asus' SmartDoctor utility allowed us to increase the fan speed up to 100%, but its lower limit was only 30%. At minimum speed the noise level was indiscernible from the 36% it runs at when idle. At 50% and above, the fan becomes increasingly loud and whiny.


EAH5750 Formula idling.


Noise & Cooling Comparison
Card
Idle
Load
SPL @1m
GPU Temp
SPL @1m
GPU Temp
ATI HD 4770
15 dBA
53°C
17 dBA
74°C
ATI HD 4830
14 dBA
56°C
20~21 dBA
86°C
Asus EAH5750 Formula
17~18 dBA
41°C
18~19 dBA
79°C
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

Compared to previous generation ATI cards, it runs fairly cool and quiet on load, but like the HD 5850, is unnecessarily loud when idle.



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