Can I dedicate 1 card just to games?

[RD-Elite]

So like 2 years ago I got me a GTX 750 ti by MSI and then recently I just got me a new GTX 1080 from EVGA. I like having my old 750, because I was able to run 2 monitors with it, because it had 1 DVI port and 1 VGA port. The 1080 does not however so I have been just running one monitor. Today I put the 750 back in along with the 1080. When I go to nvidia control panel, geforce exp. and device manager, both are detected. I am booting from the 750 because I have 2 monitors again, and my 1080 is in my second PCI slot. What I want to be able to do is just have the 750 dedicated to running my 2 monitors and have my 1080 dedicated to rendering my games, but I cant seem to figure what to do after the point of just both of them being detected, when ever I startup a game such as Overwatch, I go to the graphics options and it says that it is running off of the 750 and then I try to start a game and my fps is horrible, is there anyway I can set the game to run off of my 1080 instead? Or can I not have 2 monitors anymore and Just have to go back to running the single 1080?

 

[Herc08]

Being that the architecture is completely different, you will not be able to do that. You could always by an adapter to convert that VGA to HDMI. Also, you want to make sure that the 1080 is in the first PCIe slot.

 

[DRagor]

You can't make it so both monitors are connected to 750 but 1080 does the rendering.
However, what you can do is: Put 1080 in first slot, 750 in second; connect one monitor (the one used for gaming) to 1080 and other monitor (that will not be used for gaming) to 750. Or get an adapter to use both monitors from 1080.

 

[mjslakeridge]

Can you list the exact ports on the back of the 1080, or take a picture and upload it to Imgur.com and paste the link back here.

 

[Scottray]

I think your making things overly complicated. It sound like you have one old monitor that only has a VGA input. Get a Displayport to VGA active adapter, like this for $20. Take out the 750, only use the 1080 and call it a day. https://www.newegg.com/Product/Product.aspx?Item=N82E16812746025&ignorebbr=1&nm_mc=KNC-GoogleAdwords-PC&cm_mmc=KNC-GoogleAdwords-PC-_-pla-_-Audio+Video+Converters-_-N82E16812746025&gclid=CKPvh9TpjtQCFURufgodumYF2g&gclsrc=aw.ds