I'd be skeptical. In a blind-test between a good sound card and modern onboard, I'm pretty sure most people would fail miserably. I consider myself a fairly discerning, but I'm pretty sure I'd fail a few times too. But you can only do so much in software, before you have to turn that data into actual sound and send it to your headphones/speakers, and that's where onboard audio loses out.
__________________ QX9650 @ 4.038GHz (425x9.5) | Asus Formula Maximus | GTX280 (777/1620/1404) | Mushkin XP2-8000 Redline 2x2GB
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