Mace ya face :
Hey,
I will be using a pair of Astro A40s and wondered if it was worth getting a Sound Card or use the on-board. (Quality).
your sound is 112 dB SNR , the SB Z is 116 DB SNR , you need to understand that every 3 more DB SNR , thats DOuble the quality of the sound , so the Creative is double sound Quality.
plus the Creative has a 600ohm Amplifier for headphones ... your board doesnt have it.
so yes the Creative Z is double the sound Quality WITH 600 ohm AMP ... (doesnt work with USB headphones , needs direct input)