Custom Resolution Utility (CRU)

[H377F13LD]

Hi All,

I have a Samsung S27A850D (2560x1440) and try to overclock it. It seems that it's capable of displaying way more than 60Hz but as soon I as set the refresh rate to any value greater then 60 it looks like the monitor is dropping frames or something like that... It's like tearing or frame skipping. When I start dragging a window on my desktop it breaks the window like if the VSync is turned off and getting a high refresh rate. Or something like that. But it happens already at 61Hz and at 80Hz.

Does this mean that this monitor in reality isn't capable of displaying anything above 60Hz?

Or is there anything else I could set to fine tune the settings?

Thank you so much for your kind help!