Using two GPUs for two monitors

[Tileman]

Hi everyone, 

This is my first post on these forums (Actually just made an account for this), so if I screw something up on the post please let me know!

 

I have gotten to finally get ahold of a new 3090 graphics card, and I still have my old 1070. I have 2 monitors (Main is 2560 x 1440 at 144 hz, secondary is 1080p at 60 hz.) and I was wondering if it was possible to set them up such that I am using the 3090 to run the main monitor, and the 1070 to run the secondary monitor.

Here is a link to what the current build will be: https://pcpartpicker.com/user/Tylman/saved/xZYGP6 Unfortunately, I can't add the two different GPUs on here, but I can tell you that the 1070 is EVGA GTX 1070 8GB SC Gaming ACX 3.0

 

So, what do you guys think? Will I be able to use my two GPUs like this? Or do I need to get a better case for thermals, or is it just a fool's errand to begin with?

 

 

[Levent]

Just now, Tileman said:

and the 1070 to run the secondary monitor.

Doesnt work that way. Primary GPU handles all processing, secondary cards are used as display passthrough. I wouldnt bother with it.

[Tileman]

Just now, Levent said:

Doesnt work that way. Primary GPU handles all processing, secondary cards are used as display passthrough. I wouldnt bother with it.

Even if I plug the second monitor directly into the 1070?

If it doesn't work like that, then would it be better to plug in my second monitor to my CPU integrated graphics, or my GPU?

 

Thanks for the response, btw.

[Levent]

Just now, Tileman said:

Even if I plug the second monitor directly into the 1070?

If it doesn't work like that, then would it be better to plug in my second monitor to my CPU integrated graphics, or my GPU?

 

Thanks for the response, btw.

Same thing would apply there aswell, iGPU would used for just display outputs, no processing would done there unless application specifically targets intel gpus. Keeping it simple is always better when it comes to having multiple graphics cards. Just use your 3090 for everything, dont keep your 1070 in the system, or enable your igpu.

[Tileman]

26 minutes ago, Levent said:

Same thing would apply there aswell, iGPU would used for just display outputs, no processing would done there unless application specifically targets intel gpus. Keeping it simple is always better when it comes to having multiple graphics cards. Just use your 3090 for everything, dont keep your 1070 in the system, or enable your igpu.

Awesome, thanks so much.

I'm actually not a total noob to in-depth computational man pages. Do you know where I can read more about how this stuff actually works? All of the articles I'm finding are kind of just saying stuff, without giving references.

[BondiBlue]

What would you be hoping to achieve by doing this? Running two monitors off one card is perfectly fine. 

[Tileman]

I guess I was just hoping to still get use out of my 1070, since I didn't have anything else to do with it. It just made sense to me that I had 2 GPUs and 2 monitors. That way I could stream/view feeds with my friends on discord with 1 gpu, and game on the other.

[GuiltySpark_]

2 minutes ago, Tileman said:

I guess I was just hoping to still get use out of my 1070, since I didn't have anything else to do with it. It just made sense to me that I had 2 GPUs and 2 monitors. That way I could stream/view feeds with my friends on discord with 1 gpu, and game on the other.

You can do that still, that's why GPU's have more than one video output.

[BondiBlue]

9 minutes ago, Tileman said:

I guess I was just hoping to still get use out of my 1070, since I didn't have anything else to do with it. It just made sense to me that I had 2 GPUs and 2 monitors. That way I could stream/view feeds with my friends on discord with 1 gpu, and game on the other.

You could use it for Folding@home. LTT has a large team. In fact, we're the second largest team on the charts. 

[orbitalbuzzsaw]

Thats not how it works, you could use the other one for compute or folding or something