Lightroom 6 or CC

[Kayaker72]

Seems like some people are having issues getting the GPU enhanced performance. First step would be to make sure you have the most up to date driver for your GPU. Second step would be in lightroom, go to EDIT/Preferences/Performance and make sure the box is checked next to your Graphic Processor.

On that page is a link to an Adobe support page for GPU enhanced performance. There are minimum system requirements such as:

Minimum System Requirements

• 64-bit OS versions only
• OpenGL 3.3 and later
• Mac OS 10.9 and later
• Windows 7 and later

Note: Intel 4400 or later required
Note: GPU acceleration is disabled on Mac OS 10.8
Note: GPUs running under virtual machines are not tested or supported.

I haven't tried the face recognition software yet. Right now I am processing two trips with limited people shots. After I get back to family photos I'll give it a try.