I have a 2014 retina MBP and I run VMWare daily with Windows 7 and allotted 8 cores and 8 GB of RAM, leaving the same amount for the Mac side, and I never see a beachball. I always have at least two browsers with a few dozen Windows, outlook, slack, and a ton of software in the VM, and still don&#x27;t have an issue. YMMV.