Comparison to other half library

Hello, 
are you aware of the other half implementation for x86_64? 
https://github.com/melowntech/half 

If so, could you compare them, please? 
I'll be experimenting with using `float16_t` for a neural net library that runs on CPU, with intention to save CPU cache; the operations will be only `+,-,>` arithmetics on halfs (halves? :) ) 
Thank you, 
