Macbook Pros are tuned for quiet fan usage, this means by default they run HOT. If you're doing something really CPU extensive, it will likely heat up and then turn the fans on full blast. One thing you could try is to change the fan behavior to run at a higher min RPM, the fan will be louder all the time but it may be less prone to getting really hot and needing to go on full blast.
I understand you have questions regarding the performance and capability of ZBrush with the new MacBook Pro. While I am unable to tell you how it would perform running this software, I would recommend taking a look at the Highly Recommended Specifications for Mac in the link below. These specifications may help you choose the best system for your needs.
https://pixologic.com/zbrush/system/
I would also suggest reaching out to Pixologic's support community to see if anyone else has experiencing with this program and the system you are interested in.
http://pixologic.com/community/
Also, feel free to reach out to our Sales staff if you need additional assistance.
Thank you for visiting Apple Support Communities.
Cheers.
Macbook M1 Zbrush
Nov 16, 2016 7:44 AM
Zbrush Macbook Air
ZBrush and ZBrushCore are CPU-based software, meaning that a special video card is not required to get the best results when running the applications. ZBrush and ZBrushCore will work on most computers running Mac OSX and Windows. Simply make sure that your system meets or exceeds the following minimum requirements. A desktop seems the optimal choice for 3D work, at least for times when you need to do heavy lifting. If only they had a Mac Pro tower that was similar to the iMac. Though, the MacBook Pro should handle most situations. Most ZBrush projects should be light work, it's just unfortunate it has this issue with MacBooks.