Hi AviM,
Yes, the new Macbook should be good enough to run Windows 8.1 pro on your Parallels Desktop.
However you can still refer to this knowledge based article to know more about the compatibility of Parallels Desktop 10 with Mac systems : http://kb.parallels.com/114381
To know all the supported guest operating systems that you can run with Parallels Desktop 10, please refer to this knowledge based article: http://kb.parallels.com/122662
Last edited: Jul 22, 2015