The RightMark Audio Analyzer suite is designed for testing quality of analog and digital paths of any audio devices, be it a sound card, an MP3 player, a consumer CD/DVD player or an acoustic set. The results are obtained by playing and recording test signals passed through the tested audio path by means of frequency analysis algorithms. The latest version of RightMark Audio Analyzer can be found here.
Comparison Chart (click for larger image)
The GIGABYTE 890FXA-UD5 audio performance was top notch. Looking at the numbers, we can see that the performance across the board beats out the other boards.