While third-party tools like PHDGD automate the process, the underlying mechanism is usually a Registry hack Open Registry Editor : Search for in Windows. Navigate to Intel Keys HKEY_LOCAL_MACHINE\Software\Intel Create GMM Key : Create a new key named Dedicated Segment Size , create a DWORD (32-bit) value named DedicatedSegmentSize
It does not physically add more memory to your GPU. Instead, it changes the reported "Dedicated Segment Size" in the Windows registry. phdgd virtual vram tool
Useful for emergencies and experimentation; not for production deployment without thorough benchmarking. While third-party tools like PHDGD automate the process,