ATI radeon hd 2600
Can I use ATI radeon hd 2600 instead of audio card?
Not exactly. The Radeon Card outputs audio over HDMI. If your monitor accepts HDMI, like my HP, or you're connecting it to a TV, then you don't need to use the sound jacks on your sound card or onboard sound. If you have speakers that need a stereo jack or an optical input, then you still need a sound card or onboard sound.