I run FCP 7 on my Resolve system which has two graphics cards. And I know people who run FCP on Resolve systems with 3 Graphics cards too. So, multiple graphic cards don;t seem to bother FCP 7.
I don’t think Apple has done anything overt to ensure that FCP 7 cannot be installed or run on newer systems. I have a late 2013 MacBook Pro which shipped with Mavericks. And I could install FCP on it. (Just had to share a DVD drive off my MacPro to run the install DVDs). And now that system runs FCP 7 just fine. Maybe its all the furore over FCP X which made them take the step of not disabling FCP 7 on newer systems.
I use FCP X for some tasks and FCP 7 for others. Both run fine on my systems though not simultaneously. So, just because you get a new cyl-MacPro doesn’t mean you have to give up FCP 7 and/or use FCP X.
I think FCP 7 will run just fine on the new MacPro. Not too sure about other apps like Soundtrack Pro, Cinema Tools, DVDSP etc.
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Neil Sadwelkar
neilsadwelkar.blogspot.com
twitter: fcpguru
FCP Editor, Edit systems consultant
Mumbai India