This program allows you to use one image for your wallpaper and span across 2 monitors or more. You can also have the monitors display a different image
https://www.displayfusion.com/Download/
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https://www.youtube.com/watch?v=Jp2PPlXNDcs
To make this even playable I had to disable af and anti aliasing
Noticed throttling when playing game as well that affected performance.
Changed Settings form Very High to High to get a decent fps.
I will try again when i get my water blocks in and installed to see how the card would preform.
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https://www.youtube.com/watch?v=ylHPYE88OSE