Choice how to connect secondary 1080p monitor for better gaming performance on primary 4K monitor?

avi0013

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May 15, 2011
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I had a EVGA GTX 1080 FTW for which I activated the Step-Up and will shortly be getting a GTX 1080 Ti SC2.

Originally, I had my 4K monitor (which I use for gaming) attached to the GTX 1080 via displayport and the 1080p monitor attached to the same card via HDMI (it does not have a displayport option).

While waiting for the GTX 1080Ti to arrive, I put an old GTX 770 into my computer, and so I'm using that to run the 4K, and I'm using the IGFX on my ASUS Maximus Hero X (Z370) to run the 1080p, With the proper BIOS settings that works fine.

I like to run solo games (like Kingdom Come: Deliverance) at 4K ultra, as long as I'm getting 25FPS or better, so I'm putting a heavy load on my GPU.

My question is, once I get the 1080 Ti, will I get better GAMING performance (on that monitor only) if I continue to support the ancillary (websurfing/email/support apps) monitor via the IGFX, or should I run them both off of the GPU.

Thank you.
 
Solution
A GTX 1080 Ti should be able to handle both a 4K display and a 1080p satellite display with no performance loss. If there is nothing intensive being rendered on the other display like a high definition video then you should not see any performance loss at all. I've seen triple 4k displays done on a GTX 1070 with 2 satellites and one primary gaming display. Using dual graphics cards seems bizarre to me. I'd just run all displays on the primary renderer; the GTX 1080 Ti.

jr9

Estimable
A GTX 1080 Ti should be able to handle both a 4K display and a 1080p satellite display with no performance loss. If there is nothing intensive being rendered on the other display like a high definition video then you should not see any performance loss at all. I've seen triple 4k displays done on a GTX 1070 with 2 satellites and one primary gaming display. Using dual graphics cards seems bizarre to me. I'd just run all displays on the primary renderer; the GTX 1080 Ti.
 
Solution