Hello. I'm working with Premiere CS6, an Nvidia GTX 470 card, a 2.83 GHz quad CPU, and 8 GB ram, and am curious about what I can reasonably expect in terms of playback decompression. I mention my graphics card, and I am using GPU acceleration, but as I understand it, that has nothing to do with codec decompression.
Currently, I have a timeline with 3 tracks of the same DSLR clip (AVC, 45 Mbps) offset by a few seconds, with varying levels of opacity so that each clip shows. If I start playback somewhere in the middle, where all clips are active, the CPU gets pegged, and I drop frames. But if I start playback where there is only one track, and let it play a few seconds and then run into the second and third tracks, it all keeps playing just fine. Any ideas what's going on here?
I guess I'm curious about both why there's a difference starting on one track as opposed to many, and also if anyone can tell me what's reasonable to expect out of this CPU codec-wise. Thanks very much.