Mac OSX 10.10.4 Yoesmite
2013 MacPro Dual D700s, 8-Core 3.0 Ghz 64GB RAM
Titan X 12GB VRAM
**Short description of error**
The frames Im rendering take 90mins on an i7 quad-core CPU with 16GB RAM. On the 2013 MacPro with the Titan card those same frames are taking 2hrs 50mins. Something is incredibly wrong. The scene is very simple but does contain smoke/fire effects which I know were added in 2.77 for GPU rendering.