"Just a few years ago, if someone said that integrated audio would deliver great performance with many of the features of a full-blown add-in card, it might have raised an eyebrow or two. Today, however, thanks to vastly improved integrated technologies, today's integrated audio solutions are often more than satisfactory for a large portion of consumers. Nonetheless, there are those who want a better audio experience, which can only be delivered from the likes of an add-in card."
Sounds good to look here.