HIS HD 5550 & 5570 "Silence" Graphics Cards

Graphics Cards
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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.

VGA Test Bed: Baseline Results
(no discrete graphics card installed)
System
State
System Power
AC
DC (Est.)
Idle
75W
Unknown
CPUBurn
151W
121W
Ambient temperature: 22°C

HIS HD 5570 Silence 512MB:

VGA Test Bed: HIS HD 5570 Silence 512MB
System
State
System Fan Speed
SPL
@1m
GPU Temp
System Power
AC
DC
Idle
7V
12 dBA
51°C
92W
70W
CPUBurn
7V
51°C
167W
135W
CPUBurn + ATI Tool
7V
104°C
198W
161W
9V
15 dBA
101°C
197W
160W
12V
18 dBA
94°C
197W
160W
CPUBurn + FurMark
12V
101°C
201W
164W
Ambient temperature: 23°C
Ambient noise level: 11 dBA

The 5570 started off well, idling at 51°C with our system fan at 7V, but once the GPU was stressed, the heatsink wasn't as effective as we had hoped. With ATI Tool going, the temperature surpassed 100°C, stabilizing at 104°C. While we did not encounter any artifacts, this was far too high for our liking — generally 90°C is at the high end of our comfort level. Cranking up the system fan to 9V improved the temperature by 4°C, but it was still 1°C above boiling. At 12V, the GPU core cooled down by another 7¬įC. This improvement was wiped out once we switched from ATI Tool to FurMark, a more demanding stress program.

While the passive heatsink ensures the card remains silent, in a quiet system with little airflow, the 5570 doesn't perform well. It really needs some extra help if the GPU is going to be heavily tasked.

HIS HD 5550 Silence 512MB:

VGA Test Bed: HIS HD 5550 Silence 512MB
System
State
System Fan Speed
SPL
@1m
GPU Temp
System Power
AC
DC
Idle
7V
12 dBA
51°C
93W
71W
CPUBurn
7V
53°C
168W
136W
CPUBurn + ATI Tool
7V
97°C
196W
160W
CPUBurn + FurMark
7V
99°C
196W
160W
9V
15 dBA
97°C
194W
158W
12V
18 dBA
89°C
192W
156W
Ambient temperature: 23°C
Ambient noise level: 11 dB

The 5550 using the same heatsink had an easier time in our test system with the GPU staying just under 100°C on load, even with the system fan at only 7V. By virtue of having less demanding hardware, it managed to stay 7°C~11°C cooler than the 5570. Despite the improvement, it was still a tad on the toasty side — we wouldn't recommend it for quiet, single-fan systems if 3D applications/games are to be used.

HIS HD 5550 Silence 1GB (half-height):

VGA Test Bed: HIS HD 5550 Silence 1GB
System
State
System Fan Speed
SPL
@1m
GPU Temp
System Power
AC
DC
Idle
7V
12 dBA
45°C
87W
65W
CPUBurn
7V
47°C
162W
130W
CPUBurn + ATI Tool
7V
88°C
177W
143W
CPUBurn + FurMark
7V
105°C
182W
148W
9V
15 dBA
102°C
181W
147W
12V
18 dBA
101°C
181W
147W
Ambient temperature: 23°C
Ambient noise level: 11 dB

The half-height version of the 5550 ran cooler than the other two cards when stressed with ATI Tool, topping out at 88°C with the system fan at 7V. FurMark brought the card almost to its heels though, warming up the GPU past the 100°C mark. Under the hood, the only difference between this 5550 and the full-sized version is slower GDDR3 memory, but the bare memory chips on all the cards do not affect the core temperature.

The smaller, wraparound style heatsink has plenty of surface area, but the top side of the cooler may help trap heat that would otherwise rise off the PCB. Its fins are also more densely packed which isn't ideal for passive cooling.



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