I believe the multi zone capabilities of the 3000 is better but I don't think it has the hdmi matrix. I have been doing this comparison myself and to me the big difference is the multi zone function.

I have been doing this comparison myself. You can get a refurbished 3313 from an authorized retailer for a great price.

Temp.setup - 2.1 - Denon 1713 AVR, Denon 1713 BRD, Paradigm Cinema 200, and Monitor Audio 360 Sub