Got a modern mac with a good nvidia graphics card but premiere and after effects won't use your GPU?
All the details - http://www.vidmuze.com/how-to-enable-gpu-cuda-in-adobe-cs6-for-mac/
Short form:
/Applications/Adobe\ Premiere\ Pro\ CS6/Adobe\ Premiere\ Pro\ CS6.app/Contents/GPUSniffer.app/Contents/MacOS/GPUSniffer
/Applications/Adobe\ After\ Effects\ CS6/Adobe\ After\ Effects\ CS6.app/Contents/GPUSniffer.app/Contents/MacOS/GPUSniffer
/Applications/Adobe\ Premiere\ Pro\ CS6/Adobe\ Premiere\ Pro\ CS6.app/Contents/cuda_supported_cards.txt
/Applications/Adobe\ After\ Effects\ CS6/Adobe\ After\ Effects\ CS6.app/Contents/raytracer_supported_cards.txt