Downsampling Tutorial (NVIDIA)
Introduction
Tutorial
Everything is set & configured in the Nvidia Control Panel (as shown below)...
1. Go to Display ->Adjust desktop size & position ||| 1.1 Go to Display -> Change Resolution

1. Set everything as shown above and click Apply.
1.1 Select your native resolution and click Customize.
=> There you tick Enable resolutions not exposed by the display & press Create Custom Resolution.
2. Create your custom resolution:

It is important that you set the timings "Manual" as shown above.
(The Pixel Clock should not go above 165MHZ!)
2.1 click TEST
If you set everything correct, your Desktop will be shown in the resolution you chose!
(It is important: that you click Yes if you see your Desktop in the desired resolution.
=> This is for adding the resolution and not for setting it up for your desktop.)
3. Set your custom resolution ingame

Note: @3840x2160
Some monitors do not go beneath 56Hz, even if they are able to! That is driver related & can be fixed!
(My 24" Samsung e.g. needs the EDID Monitor Hz FIX[www.oc-burner.de] for 3840x2160 @54Hz, to work properly!)
1. Go to Display ->Adjust desktop size & position ||| 1.1 Go to Display -> Change Resolution
1.1 Select your native resolution and click Customize.
=> There you tick Enable resolutions not exposed by the display & press Create Custom Resolution.
2. Create your custom resolution:
(The Pixel Clock should not go above 165MHZ!)
2.1 click TEST
If you set everything correct, your Desktop will be shown in the resolution you chose!
(It is important: that you click Yes if you see your Desktop in the desired resolution.
=> This is for adding the resolution and not for setting it up for your desktop.)
3. Set your custom resolution ingame
Note: @3840x2160
Some monitors do not go beneath 56Hz, even if they are able to! That is driver related & can be fixed!
(My 24" Samsung e.g. needs the EDID Monitor Hz FIX[www.oc-burner.de] for 3840x2160 @54Hz, to work properly!)
Comparison
Attention
Unfortunately after installing a new Nvidia Driver, you have to set your custom resolution again! Even with the "Express Installation". (on some systems)
Note
This Guide works for all Games which support high resolutions!

http://steamcommunity.com/sharedfiles/filedetails/?id=224207176
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http://steamcommunity.com/sharedfiles/filedetails/?id=224207176
--------------------------------------------------------------------
PLZ Rate if you like... :)
& follow me for more SLI Fix Guides => click
Tutorial for AMD-user Edit
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