The non-Avid version has ProRes and H.265 encoders on board whereas the DNxIO has DNxHR. There is no mention of on-board DNxHD encoding. The DNxHR will be an update in Q4/2015. Although not explicitly mentioned, I do not know if the DNxIO also includes H.265 but will assume (for now) that it does. The one advantage of DNxHR over ProRes is that it works cross platform on OS X or Win whereas encoding for ProRes is OS X only.
Other than that and the logo, it is hard to tell what other differences that exist. We will have to wait till Q3 to see what it really ends up being. The big question (amongst others) for me is whether the IO box will continue to use Avid’s Open IO as with all third parties, or will there be better or tighter integration with this model? Word from NAB was that this would not provide universal mastering, so I wonder about all those frame rate conversions it can do.
The Avid version does include the Fusion Connector (not mentioned in the press release) for those wanting to integrate Fusion with MC – perhaps that is why it is a Q3 release which will be about the time I suspect we’ll see the OS X version of Fusion hit the market. But word out of NAB was that there would also be a $200 Fusion connector only price at some point for those who needs just that.
At first blush, this seems better suited to facility class/machine room type configurations. In my world, the non Extreme version is a better fit for my file-based workflows. Comes with full version of Resolve, and getting the $200 Fusion connector will amount to $1,200.
My two cents based on what the information available so far – IBC is Q3 and perhaps the feature/benefit/value changes.
Michael