Well, here we are at AE Version 2017 and STILL no multi-threading. Major bummer. A couple points of clarification – CPU/GPU utilization in Adobe Media Encoder (at least in MS Windows) is codec dependent. Some codecs are optimized for full utilization of CPU/GPU resources (MPEG2) others, not so much (Apple ProRes).
…and forget about exporting to Encoder if you need an alpha channel. Encoder STILL doesn’t export with alpha.
Brent Watkins
Producer
https://www.rivermedia.tv