Radeon HD 5750 & HD 5450 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

ATI Radeon HD 5450 512MB:

VGA Test Bed: ATI Radeon HD 5450 512MB
System
State
Sys. Fan Speed
SPL
@1m
GPU Temp
System Power
AC
DC
Idle
7V
12 dBA
44°C
83W
62W
CPUBurn
45°C
158W
127W
CPUBurn + ATITool
68°C
159W
128W
CPUBurn + FurMark
69°C
9V
15 dBA
68°C
158W
127W
12V
18 dBA
66°C
157W
126W
Ambient temperature: 22°C
Ambient noise level: 11 dBA

The reference cooler kept the graphics card very well, keeping the GPU core well below 50°C when idle and just under 70°C on load. Increasing the speed of the our airflow-starved VGA test system had only a small effect on the thermal results. It's fair to say that the large passive heatsink can keep the GPU comfortably cool in most thermally-demanding environments.

Interestingly, stressing the CPU and GPU combined only increased the power draw by 1W compared to the CPU alone. This is surprising as even ATI's integrated graphics typically generate an extra 10W draw.

3D Performance

We normally don't run benchmarks on graphics cards as there is typically a plethora of benchmarks available at other sources. However as this is a new new part and an entry level one at that, it may be some time before more detailed 3D performance based reviews become available on line, so a quick run through 3DMark seemed appropriate.

3D Performance: Futuremark Comparison
Graphics
3DMark05
3DMark06
HD 4200
(Integrated, Sideport)
4095
1789
HD 3300
(Integrated, Sideport)
4884
2205
ATI Radeon HD 5450 512MB
6231
3435
GeForce G210M
(Asus UL80Vt)
6847
3460

3DMark, while a completely synthetic benchmark is a good general indicator of 3D performance, particularly when the score differences are quite high as it is in this case. The 5450 scores significantly higher in both 3DMark05 and 3DMark06 than any IGP at least, similar to the GeForce G210M found on the Asus UL80Vt laptop. For reference, we managed to play Call of Duty 4 on the UL80Vt at 1366x768 resolution fairly smoothly with most of the extra details turned on and 2x anti-aliasing.

It should also be noted that our HD 5450 sample had memory clocked 100MHz higher than the reference speed. According to ATI, this results in 5~6% higher scores in 3DMark Vantage. AiB partners do have the option of using faster memory, but it is likely that only models running at reference speeds will be available at the $50 mark.



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