My bad. What I wanted to say is if the AVR HDMI has audio pass through or not? If yes, you will need separate digital outputs in your laptop.
For non HD audio its identical.
For HD audio the only option is HDMI. So no comparison in this case.
I am seriously considering onkyo-3300 for my bedroom. It is about 15ft by 12 ft. Is it feasible to setup a 5.1 system in a room of this size? And does this onkyo-3300 have hdmi audio pass through? If some u guys can provide a brief review or something then it will make my day.