Joe, the reason that I was surprised with your statement that the queued AME job would not use GPU is that I observed, actually observed different behavior that led me to believe that the GPU was used in AME.
I use Digital Anarchy's Beauty Box, I like it a lot, but it is slow. For CS5 and up they enhanced it to use the GPU, there is a little checkbox in the plugin's interface that allows you to use GPU or not. With GPU on it was about 5-10 times faster than just CPU. However, with it checked, it caused my Mac to be hard to use when it was rendering (either generating a preview or exporting) because the mouse became unresponsive, like somehow using the GPU in this plugin stole cycles away from the system that monitors the mouse position. I would move it, and nothing happened, then it would jump to another position. If I moved the mouse really slowly I could control it.
Anyway, when I had GPU setting checked in Beauty box, even with AME queued sequences the render went a lot faster. I could see it going fast in the AME preview window with GPU on. I also experienced the jumpy mouse problem. With GPU off it was really slow but no jumpy mouse. Maybe plugins go around Premiere's native use of the GPU, not sure. But I was pretty sure CUDA GPU is used in AME.
So maybe this should be clarified again, I've always heard and thought that AME used GPU, this is in some Adobe marketing demos as well.
