The Intel UHD 770 integrated graphics (found in 12th, 13th, and 14th Gen Intel CPUs) is completely unsupported in macOS. This is because it is based on the Intel Xe architecture, which Apple never used in any Intel-based Mac; they transitioned to Apple Silicon before adopting this hardware.
| Setting | Change to | Why |
| :--- | :--- | :--- |
| IGPU Multi-Monitor | Disabled (if using dGPU only) | Prevents the iGPU from rendering a phantom display. |
| RC6 (Render Standby) | Enabled | Allows iGPU to power gate when idle. Crucial. |
| GT Voltage Mode | Adaptive (not Override) | Drops voltage to 0.7V at idle instead of fixed 1.1V. |
| Primary Display | PCIe (if dGPU) or IGPU (if only UHD 770) | Avoids auto-switching confusion that wakes the iGPU. |
| Above 4G Decoding / Resizable BAR | Enabled | macOS handles this fine, but disable CAM (Clear Access Memory) if present—it conflicts with iGPU frame buffer. | uhd 770 hackintosh hot
spoofs, but since the underlying driver doesn't understand the Xe architecture, it cannot enable the "hot" performance (acceleration) users expect. 3. The Only Solution: Dedicated Graphics (dGPU) The Intel UHD 770 integrated graphics (found in
Platform ID: 0x0300C89B
Device ID: 0x9B681086 | | RC6 (Render Standby) | Enabled |