[Horacio Ingargiola]

For the hardware you put in the list you will need 2 pci express 16 slots, the first for gui card, and the second for GPU card, 2 pci express x4 1 for decklink and the other for mojo DX. AND 3rd pci express x4 or x8 for external raid.
In the terms of compatibility I don’t know if mojo and decklink can work together, but you can probe it
For the software you can run Avid, Nuke, Adobe all together with out major problems, davinci it’s integrated with avid with aaf,and for after effects you can use aaf too or boris software to integrate avid and AE

[Horacio Ingargiola]

I don’t think civilization 5 it’s a parameter to take to evaluate 680 card with davinci
And for other way i don’t think that nvidia guys are so stupid to make a next generation card worst than before generation
The only answer it’s wait to davinci engeneers optimize the program for this card, and i presume windows version of davinci it’s better than mac