I have an NVIDIA GeForce Titan GPU mounted via thunderbolt on my Mac In my Parallels Running Windows 10 Under Settings: Device Manager: Display adapters: It shows Parallels Display Adapter (WDDM) Is there a way I can point that at the external GPU card. that way I can GPU render from within Windows using GPU Rendering software Many thanks Peter Externally Mounted Card through Thunderbolt NVIDIA GeForce GTX TITAN: Chipset Model:NVIDIA GeForce GTX TITAN Type:GPU BusCIe PCIe Lane Width:x8 VRAM (Total):6143 MB Vendor:NVIDIA (0x10de) Device ID:0x1005 Revision ID:0x00a1 ROM Revision:VBIOS 80.10.2c.00.90 Card in Imac AMD Radeon R9 M390: Chipset Model:AMD Radeon R9 M390 Type:GPU BusCIe PCIe Lane Width:x16 VRAM (Total):2048 MB Vendor:ATI (0x1002) Device ID:0x6819 Revision ID:0x0000 ROM Revision:113-C408WA-799 EFI Driver Version:01.00.799 Displays: iMac: Display Type:Retina LCD Resolution:5120 x 2880 Retina Retina:Yes Pixel Depth:30-Bit Color (ARGB2101010) Mirror:Off Online:Yes Built-In:Yes
Hello Petera2, Guest OSes in Parallels Desktop have no access to physical graphics cards present in a Mac. Instead, Parallels Display Adapter driver (which is part of Parallels Tools installation) interfaces with virtual hardware and provides 3D acceleration features. The actual acceleration is achieved by translating DirectX commands from the guest to OpenGL API on OS X side, please refer to the link to learn more.
