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Nvidia's multi-gpu anti-aliasing/low gpu usage

Last response: in Graphics & Displays
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July 14, 2013 7:51:33 AM

I have a GTX 690, and very low gpu usage while playing games. Only one thing solves it: multi-gpu anti-aliasing, via nvidia control panel.

GPU usage goes from 58% to 90-98% on both gpu's, and the fps boost is big. From 50-70 to 70-120.

My problem is that this works ONLY for single monitor. When I enable nvidia's surround and 5076x1080 resolution the multi-gpu AA isn't available anymore. GPU usage is back to 50% and fps is 37-60. It doesn't matter how much graphical settings I turn up, or apply more anti-aliasing.

Anyone knows WHY I can't choose multi-gpu AA with nvidia surround?

Anyone knows how to improve gpu usage and fps in another way?
October 29, 2013 3:42:57 PM

Hey there, I've being having some issues with low GPU utilization on GTX 690 as well with a single 1080p monitor, I'll give this a try and see what happens.

I'm not looking to add anymore monitors soon, but if I do I'll try and see what happens, in the mean time I hope someone with expertise will address your issue


single monitor 1080p
GTX690
MSI Z87-GD65
i7 4670k
corsair tx750
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October 29, 2013 4:43:58 PM

The issue is likely your CPU is too slow, so it can't support your GPU's. Turning up AA gives more work to the GPU's, increasing the usage.
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October 29, 2013 6:52:25 PM

Hedlund said:
I have a GTX 690, and very low gpu usage while playing games. Only one thing solves it: multi-gpu anti-aliasing, via nvidia control panel.

GPU usage goes from 58% to 90-98% on both gpu's, and the fps boost is big. From 50-70 to 70-120.

My problem is that this works ONLY for single monitor. When I enable nvidia's surround and 5076x1080 resolution the multi-gpu AA isn't available anymore. GPU usage is back to 50% and fps is 37-60. It doesn't matter how much graphical settings I turn up, or apply more anti-aliasing.

Anyone knows WHY I can't choose multi-gpu AA with nvidia surround?

Anyone knows how to improve gpu usage and fps in another way?


hey there, I tried it and it still didn't fix the issue for Crysis 2, if you don't mind sharing what's the exact settings that you have?
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