Multiple Graphics Cards For More Outputs

[DMKitsch]

Hi,

I have recently been on the quest for finding ways to get more outputs from my desktop cheaply. I've come across the Nvidia Quadro NVS440, which seems a very basic card with four outputs. I understand on it's own it probably wouldn't be able to achieve much but am I right in thinking if I use a powerful primary graphics card (Nvidia 980Ti) through resolume, the performance of the NVS440 is not so much of a concern? I notice on it's specifications that it's primary purpose is for 2D graphics, presumably for video wall showing basic presentations and videos, though my use is more for standard resolume VJ'ing

Thanks for the help,

Dave

[Joris]

The specs of the second card are indeed not as important, as long as you make sure the Resolume UI is on the powerful card.

Keep in ming that using a second GPU will always cause a performance hit.

[Oaktown]

I have recently been on the quest for finding ways to get more outputs from my desktop cheaply.

From my experience, this is not something that can be done both cheaply and efficiently. If you need to get more output than your GPU can handle, you'll have to spend some money to make it work well. There are many viable solutions to expand a system (master/slave setup, signal distribution over Matrox or Datapath hardware for instance) but nothing cheap.

[emulsion]

The specs of the second card are indeed not as important, as long as you make sure the Resolume UI is on the powerful card.

Keep in ming that using a second GPU will always cause a performance hit.

NVS 810 y GTX TitanX can not work in the same computer.......quadro graphics can not work with geforce graphics

[Joris]

Well, if we're going to be pedantic about it, according to NVidia, GTX and Quadro together is not impossible. It's just undefined behaviour and so not recommended or supported.

We've gotten the Titan and the 820 to run together with Resolume by jumping though some hoops.

First disabling all the 820 outputs in Windows' screen manager,
then launching Resolume so it will run on the Titan card,
then re-enabling the 820 outputs,
then sending content to them in Resolume.

Not easy, not reliable, not supported and not recommended. But not impossible

[emulsion]

Hello !!
thanks for your specifity and concret repond ......... other posibility is nVIDIA Quadro K4200 o K2200 + NVS 810 ??
those are compatible ....no body test it this posibiity ??.......
finally everybody want the same.... more monitors out,,,,compatible and running well with out use matrox, no more hubs....thats the experience

[Digi]

I've tested this a LOT actually and you loose FPS by running another card just to use it's outputs.

It's a pit fall of about double the loss in fps when adding a output to the card. For example if I add a 1080p output I loose 3 fps per HD device I add. If I use a second video card for outputs I loose 6fps per device. So by about 4 unique outputs and you've hosed your video cards fps by 24fps.

You'd think with pci-e 3.0 which is technically faster then the Sli bridge would resolve the issue but it doesn't.

A single super strong card sending to a hub of some kind or processor like a data path is best.
If you want to get super crazy you could in theory run 2 copies of Resolume on 2 independent machines to distribute the compute power of the gpu's by outputing one card's render to a capture card on another rig and then do more crazy stuff and output that to your devices. OSC can be used to link the machines and all kinds of ridiculous idea's.

[emulsion]

I've tested this a LOT actually and you loose FPS by running another card just to use it's outputs.

It's a pit fall of about double the loss in fps when adding a output to the card. For example if I add a 1080p output I loose 3 fps per HD device I add. If I use a second video card for outputs I loose 6fps per device. So by about 4 unique outputs and you've hosed your video cards fps by 24fps.

You'd think with pci-e 3.0 which is technically faster then the Sli bridge would resolve the issue but it doesn't.

A single super strong card sending to a hub of some kind or processor like a data path is best.
If you want to get super crazy you could in theory run 2 copies of Resolume on 2 independent machines to distribute the compute power of the gpu's by outputing one card's render to a capture card on another rig and then do more crazy stuff and output that to your devices. OSC can be used to link the machines and all kinds of ridiculous idea's.

Hi man!!
do you think is imposibe to get 7 monitors full hd ?? when I intall de GTX 960 my titan x change the speed bus pci 3.0 x 8 and the second card x 8....... too
do you know if maybe is that the trouble ??
thank you