Depends whether you have good speakers or not. I noticed a BIG difference when going from onboard sound to an AWE64, but then again, my speakers are better than your typical computer audio setup ($500 for just 2.1 speakers, w/o amp). I've been meaning to upgrade to a sound card w/digital out and amp/receiver with digital in, but that's lots of money. Besides, with all the noise my cpu fan makes, I don't know if it'll make a difference =)