Asus EN9400GT Silent Edition

Graphics Cards
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BIOS

Extracting the card's BIOS using GPU-Z, we examined the contents using the nVidia BIOS Editor. It gives insight into how the card behaves in regard to clock rates, voltages and fan speeds (the latter not applicable in this case).


BIOS Clockrates.

The BIOS indicates that it runs in an underclocked state during 2D operation, but during testing the clock speeds remained at 550 / 400 MHz at all times according to GPU-Z.


BIOS Voltages.

The BIOS also indicates a 0.1V undervolt in 2D mode.

Video Playback

As a low-end card, the EN9400GT is ideal for non-3D use, i.e. anything but gaming. Decoding popular high definition video formats is really all a good budget graphics card is good for in most cases. The better the hardware acceleration, the less strain is placed on the CPU, freeing it up for other tasks.

Video Playback Comparison
Video Clip
Asus EN9400GT Silent
PowerColor SCS3
HD 4650
Asus EAH3650 Silent
Mean CPU
AC
Power
Mean
CPU
AC
Power
Mean
CPU
AC
Power
Rush Hour
(H.264)
43%
~112W
4%
~102W
2%
~102W
Coral Reef
(WMV-HD)
28%
~110W
30%
~115W
28%
~117W
Drag Race
(VC-1)
70%
~137W
64%
~137W
72%
~141W

The EN9400GT does a fairly good job with VC-1 encoded content, using about 6W less than the HD 4650/3650 during the Coral Reef clip and matching the HD 4650 during the Drag Race clip. CPU usage was similar between the three cards during VC-1 playback. Unfortunately, the card dropped the ball during the H.265 Rush Hour clip which is typically the least demanding video in our test suite. Rendering this clip is usually trivial for modern GPUs, but the EN9400GT required more than 40% CPU utilization to play it and expended 10W more doing so than the two comparison cards.



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