![]() To investigate this, I’ve been using my normal desktop Mac, a base model iMac Pro with an 8-core Intel Xeon W running at 3.2 GHz, 32 GB of memory, and a Radeon Pro Vega 56 graphics card and its 8 GB of memory. ![]() Will your VM run like an old Intel Core Duo iMac, and be almost unusable? This article looks at some answers to that question, using performance measurements built into macOS rather than artificial benchmarks. One major concern with any form of software virtualisation is how it will perform. If you need to retain access to key 32-bit apps, or anything else which won’t run in Catalina, a VM running Mojave or earlier is a highly practical solution, and very straightforward to set up using the latest Parallels Desktop 15. It’s a standard tool for security researchers, and for many developers, but of little advantage to others – until Catalina drops support for 32-bit software, that is. ![]() Before the arrival of Catalina, relatively few Mac users needed to run an older version of macOS in a Virtual Machine (VM).
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