Some people may already know this method of overclocking the screen, but I'll post it anyway as its not as easy to overclock, as it is on Nvidia. 
CLICK FOR QUIDE
WARNING: I take no responsibility of any damage to your screen, you do everything on your own responsibility.
If you use LCD screen, then usually its hard to overclock the screen past the limit that has been reported. I have Samsung SA350H 22inch and my limit is 75Hz, The screen works fine on 80Hz but it goes to standby every 2min before this I get an message that recommended is 1920x1080 60Hz. Also don't panic if you screen goes purple or has any artifacts, just restart the PC and go into safe mode then use the program again to change back the refresh rate to e.g. 60-75Hz.
P.s
I have seen some people getting good results on screens which are advertised as 60Hz, some even got 92 or 100Hz which is pretty good. You can play around with the resolution, but for decent picture quality stay with your native.
EDIT:
Maybe anyone has any ideas of how to overcome this pop-up message issue when going over the limit?
CLICK FOR QUIDE
WARNING: I take no responsibility of any damage to your screen, you do everything on your own responsibility.
If you use LCD screen, then usually its hard to overclock the screen past the limit that has been reported. I have Samsung SA350H 22inch and my limit is 75Hz, The screen works fine on 80Hz but it goes to standby every 2min before this I get an message that recommended is 1920x1080 60Hz. Also don't panic if you screen goes purple or has any artifacts, just restart the PC and go into safe mode then use the program again to change back the refresh rate to e.g. 60-75Hz.
P.s
I have seen some people getting good results on screens which are advertised as 60Hz, some even got 92 or 100Hz which is pretty good. You can play around with the resolution, but for decent picture quality stay with your native.
EDIT:
Maybe anyone has any ideas of how to overcome this pop-up message issue when going over the limit?
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