Wed Sep 05, 2012 10:51 pm
It shouldn't be. None of our capture devices do any sort of processing. However, it does take slightly more horsepower to output from a board as apposed to not outputting anything at all (running software only). I would expect this on older MacPro systems like yours.
I hope that clarifies.
Joshua Helling
Director of World Wide Support
Blackmagic Design Inc.