macOS 27.3 lets Mac VMs use host GPU/Neural Engine for Core AI, up to 7x faster
HankYeomans · x · 2026-11-09
- macOS 27.3 allows Core AI inside Mac VMs to use the host's GPU and Neural Engine: new paravirtualized paths run Core AI tasks up to 7x faster than the guest CPU, reaching 50% to nearly 100% of native host speed.
- The Core AI accelerator currently requires private APIs and a restricted entitlement.
- Setup: install macOS 27.3 on host and guest; build a VM host app with com.apple.security.virtualization and com.apple.private.virtualization entitlements (relax AMFI for the latter); add accelerators via setAcceleratorDevices on VZVirtualMachineConfiguration.
- The retweeter notes this means you can now sort of containerize and sandbox local LLMs on mlx.
Related event: macOS 27.3 lets VMs tap host GPU and Neural Engine, up to 7x faster AI(3 posts)→
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