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Asus Xonar DG review

Is there still a case for dedicated sound cards?

Our Verdict

Thought you didn't need an add-in sound card for games? Think again.


  • Cheap
  • Noticeable quality
  • Built-in headphone amp


  • No PCI-E

Asus has established itself as a player in the high rollers' hi-fi lounge with Xonar soundcards like the Xense, D2 and mighty Essence ST. Although still relatively new to the audio game, it can look old timers like Creative and Auzentech in the face without shame.

Asus' latest card, the Xonar DG, features some of the same components as appear on its more expensive boards, just not in such great quantity. It's specifically aimed at gamers rather than music buffs, though, with basic outputs for 5.1 PC speakers and – crucially – an on-board headphone amp.

It's a tough job to convince anyone to upgrade from on-board audio, for the very good reason that most integrated sound chips are good enough for the majority's needs. Having made the decision to upgrade, should you be looking at something a little grander?

We've used Rightmark's Audio Analyzer tool to give a top level breakdown of the card's performance. It's worth pointing out that this simply measuring variations in tones via a loopback from the speaker to the mic channel – effectively the card is listening to itself.

RMAA total harmonic distortion 24-bit/48KHz (lower is better)
Intel on board: 0.131%
Creative X-Fi Titanium HD: 0.0020%
ASUS Xonar Xense: 0.0004%
ASUS DG: 0.0027%

RMAA Dynamic range 24-bit/48KHz (higher is better)
Intel on board: 90.4dBA
Creative X-Fi Titanium HD: 113.2dBA
ASUS Xonar Xense: 115.0dBA
ASUS Xonar DG: 103.3dBA

Noise level 24-bit/48KHz (lower is better)
Intel on board: -90.4
Creative X-Fi Titanium HD: -113.4dBa
ASUS Xonar Xense: -116.1dBA
ASUS Xonar HD: -103/4dBa

Tech Specs

Product TypeSound Board
Channel Supported5.1
Brand NameAsus
Form FactorInternal
DAC Data Width24 bit
Sampling Rate44.10 kHz, 48 kHz, 96 kHz, 24 bit 44.10 kHz, 24 bit 48 kHz, 24 bit 96 kHz
Signal to Noise Ratio (SNR)105 dB, 103 dB
Host InterfacePCI
ManufacturerASUS Computer International
Product ModelXONAR DG
Product NameXONAR DG Sound Board
Audio ProcessorC-Media CMI8786
Manufacturer Part NumberXONAR DG
Manufacturer Website Address
Interfaces/Ports3 x 3.5mm Mini Jack - Front/Side/Center-Subwoofer, 1 x 3.5mm Mini Jack - Line-In/Mic-In
Sound Channels5.1