Custom Resolution Utility (CRU)

[MatthiasH]

Hello, I was mainly concerned with increasing the native refresh rate of 60Hz of my Dell UP2516D to 80Hz and activating Freesync.
One issue I had was that 80Hz always seemed a little blurrier than 60Hz and even 75Hz, which happens to be a supported refresh rate in some resolutions.
But then I noticed instead of just adding refresh rates, sometimes one has to edit the "Display Properties" on the top, where one can change the Range limits. Arguably changing the V rate from 50-75 to 50-80 has reduced the blur (approximated to the normal blur of the monitor).
But I will have to test it a little more. (Maybe someone can mention if my assumption about this is wrong anyway.)

My main issue has been with Freesync. Some say, HDMI works best or only. I currently use the Displayport. I also don't see a guide for Displayport, but incidentally on that matter the original post mentions editing the Display Properties as I just said above.
Do I have to try the HDMI cable to see if turning on Freesync is possible?

But then I came across this random comment from 2015, and it makes me wonder:

(09-06-2015 08:55 PM)falkentyne Wrote:  And if this *IS* indeed an XG270HU......this is a FREESYNC monitor. And you are using a GSYNC video chip ..freesync/adaptive sync does NOT work with Nvidia cards, so...why did you buy that monitor? Return it and get an XB270HU...(IMO)

*IF* This is a GSYNC monitor (the XB270HU), then read on.

Is this (still) true, Nvidia cards automatically exclude Freesync support? I'm quite sure this is incorrect, as I tried some Freesync monitors which definitely worked on my GTX 1070. I don't remember if they all showed a Freesync setting in the Nvidia Control Panel, but some did, I think. (And I had the bad luck that around the time Freesync monitors which interested me were slower than the Dell, which is more or less for image editing, but wide gamut was a priority for me too.)