Any 2x or 4x graphic card for pass through

Hardware GPU
1

Hello everyone,

I am looking for special GPU for pass through

Objective is to run DX9 application under guest with pass through
The application that Im running is not that heavy but requires dedicated GPU

So far, I only found 1 GPU that may capable of what im trying to achieve; Nvidia GRID K1
This is 2slot card that has 4 GPUs where I can assign each GPU to each guest.

I have not tested this GPU yet but when I checked lspci of this card (from online), it looks like each GPU gets different iommu group

Blockquote
07:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK107GL [GRID K1] [10de:0ff2] (rev a1)
08:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK107GL [GRID K1] [10de:0ff2] (rev a1)
09:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK107GL [GRID K1] [10de:0ff2] (rev a1)
0a:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK107GL [GRID K1] [10de:0ff2] (rev a1)
Blockquote

This card is slightly expensive than my current budget (around $300 each)
So I am looking something else but in cheaper price if possible.

Optimal form factor will be 2x in single slot or 4x in dual slot

So far, I found one card that has 2 gpu in single slot; NVS 450
However, it looks like its bridged together with NF200 chip and not able to assign each gpu to each guest os.

Is there any other card that will help me to achieve my goal?

Thank you so much!

2

Two single slot cheap GFX cards should work just fine.

However, I think Looking Glass require two GPUs of different models.

3

Thanks for the reply wertigon
I want to achieve many guest as possible not by limited pcie slot
I may able to run 10+@ guest if I can find right graphics card like I mentioned above.
Looking glass is not required on this project since vnc is sufficient in my case

4

Both AMD and Nvidia have tech that will allow this. AMD’s is called MX GPU and Nvidia’s is vGPU.

Almost all cards that are dual GPU, such as a HD 7990, R9 295x2, GTX 690, Radeon pro duo, have both GPUs in the same group so can only be used in one VM at a time.

These link have the cards that would work-
https://www.amd.com/en/graphics/workstation-virtual-graphics
https://docs.nvidia.com/grid/gpus-supported-by-vgpu.html

Unfortunately, all the cards with this tech are $1000+ right now.

5

Thanks TheCakeIsNaOH
I guess the most affordable GPU that I can try will be K1
But now I know more GPUs that has potential of doing such thing.

Thanks again!