GeForce GPU Passthrough for Windows Virtual Machine

[Teching Marvellous]

I'm just wondering what kind of gaming performance I could expect by splitting my GPU and system into two gaming Machines through a VM? Only so my Mrs could game on a second monitor. I know my GPU is the weakest link here, but I'm skipping the 30 series and waiting for the 40 series now. 

 

Cheers David. 

[RONOTHAN##]

20 minutes ago, Teching Marvellous said:

Only so my Mrs could game on a second monitor.

All of the implementations of GPU sharing for VMs don't really support outputting the VM directly to a monitor. You can technically get this to work if you do it in Linux with the vGPU unlock script, but then you're looking at a lot of effort and basically driver hacking. 

 

Anyway, the performance you'd get will be dependent on the game and if you're doing something at the same time. The VM and main system can each access 100% of the GPU, the only restriction to that is if you're using vGPU_Unlock the VRAM is limited to whatever is given to the VM (this restriction does not exist with GPU-P). 

[Teching Marvellous]

Thanks for the information, I did not know about the second monitor deal - I just assumed you could drag the VM window onto another monitor - silly me. Nothing ever that simple. . Cheers mate. 

[RONOTHAN##]

1 minute ago, Teching Marvellous said:

Thanks for the information, I did not know about the second monitor deal - I just assumed you could drag the VM window onto another monitor - silly me. Nothing ever that simple. . Cheers mate. 

With GPU-P you can, the problem is there's no way to pass any direct input device to it if you use GPU-P, meaning the Window has to be in focus using the mouse and keyboard in order to function. Basically, if you want to do this, you need to have the second machine running Parsec, remoting into the VM.