Hi Spike,
FCS does utilise the cores better than it ever has done in the past but there is only so far you can go with a 32bit app. Could FCS use the cores better? Yes it could. Will it happen with this version? I doubt it. When FCS becomes 64 bit is when we’ll really see the difference.
You’ll find the biggest speed bump when encoding your final videos.. Compressor does a great job of making the most of a multicore system. And if you’re working HD vision then those extra cores will help when rendering effects in FCP.
Motion focuses more on the graphics card you have installed than the processors and the AGPs on the Pro are better than those in the iMac. FCP can only use up to 4GB of system RAM but that doesn’t stop you from putting more RAM in your Mac for other apps and processes!!
My advice would be to go for a MacPro. It doesn’t have to be the high end model though. The main thing that always pushes me towards the Pros than the iMacs is that the Pros are much easier to upgrade as you go. Extra RAM, graphics cards, HDs, capture cards etc. The iMac gives you very little choice for upgrading. Plus if you’re cutting HD vision you may want to consider ESATA ext HDs. The iMac doesn’t have an ESATA connection.
Don’t forget the other apps out there that are 64bit, like CS5. I used to use Adobe Media Encoder CS4 to create flvs and it was painfully slow. With CS5 and it’s 64bit architecture, the same encoding process flies! I haven’t upgraded my mac but the new app uses my resources in a much more effective, 64bit kinda way. I’m looking forward to FCS 64bit and I don’t think I’m the only one!
All the best,
Simon
“Is it me or do I spend half my life watching little grey bars turn into little blue bars??”