Documentation says that one must run Mac OS High Sierra in order to have the NVIDEA CUDA Drivers to work properly so that someone can run a NVIDEA eGPU for deep learning.
Programs like tensorflow support CUDA/ NVIDEA, but not AMD. Also the higher end NVIDEA GPUs are very fast, such as the 2080...
More of an Internet of Things device, but can also be used for Home Automation:
http://www.pcworld.com/article/3063035/internet-of-things/thumb-pc-uses-google-software-to-give-computer-vision-to-robots-and-drones.html
I think this approach is the future. Specialized modular computing, put on...