UTM also doesn’t emulate GPUs as I understand, so you’d be limited to CPU rendering and very basic GPU abilities. VirtualPC back in the PowerPC days was very slow, I wouldn’t have high hopes that UTM on an M1 Mac would be as good or better than the performance you’re used to. I haven’t used UTM so I can’t speak to its performance. Theoretically with UTM you could emulate your Xeon Mac Pro system on an M1 Mac and run your existing El Capitan installation in a virtual machine similar to Parallels. It won’t help you use older OSes or older apps that are incompatible with Big Sur+.įortunately there is an emulator available called QEMU and a Mac app called UTM that lets you emulate x86 Intel chips on an M1 Mac or even on iOS. That’s kind of what Rosetta 2 does, however Rosetta 2 will only let you run a Big Sur or Monterey-compatible Intel app in Big Sur or Monterey on M1. That kind of CPU architecture emulation is what you’d have to do to run the Intel-only Mac OS 10.11 and all your Intel-only software. I bet you probably remember VirtualPC from back in the PowerPC Mac days, that emulated an x86 Intel CPU so you could run Windows XP on your Mac.
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