I have Catalyst v3.3 on a dual 2Ghz on Mac OS 10.3.9. I was on 10.3.3 but there appears to be a bug in the Aurora Pipe driver installer that forced us to upgrade. I have a SCSI 2nd drive set up with a Maxtor 15K drive and two SDI video input cards, one Decklink and one Aruora.
If I am playing one QT mov at 720x540, Photo-Jpeg Med movie, I get playback at 30fps. If I turn on at Catalyst one video input, playback on that layer drops to 25fps, and turning on the the 2nd Catalyst video input drops playback rate even further.
I need to keep both video inputs on to switch between cameras and content. What should I be looking for either at the Mac or at the card drivers, to keep my performance at it's best?