macOS 27.3 gives Mac VMs host GPU and Neural Engine access, up to 7× faster Core AI
HankYeomans · x · 2026-11-09
macOS 27.3 lets Core AI inside Mac VMs use the host's GPU and Neural Engine via new paravirtualized paths. In some tests Core AI tasks run up to 7× faster than the guest CPU, reaching 50–near 100% of native host speed.
The accelerator currently requires private APIs and a restricted entitlement. Setup: run macOS 27.3 on host and guest, build a VM host app with com.apple.security.virtualization and com.apple.private.virtualization entitlements (relaxing AMFI for the latter), then add accelerators on VZVirtualMachineConfiguration via setAcceleratorDevices with private VZMacC… interfaces.
Related event: macOS 27.3 lets VMs tap host GPU and Neural Engine, up to 7x faster AI(3 posts)→
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