Nick_156 :
Sam Hain :
The "jury is out" so to speak... Some say it shortens the life-span of a monitor in doing so, but you may end up upgrading before it happens, chance you may be taking OR not.
If you are thinking of lowering the rez, why not have not just purchased a 1440p 165Hz from the get-go and no overclock needed. Then you could have used DSR to upscale games to 4K rez in-game, much simpler result(s). Just a thought.
In any event.. When you create a custom resolution and refresh rate just add 1hz at a time. When the monitor posts a black screen just wait and it will default back to the previous working refresh rate and thats your maximum refresh; mileage WILL vary monitor to monitor.
I'm relatively new to the pc gaming world. I have a 4k tv but I wanted a monitor so I could use my pc for other pc things as well. My tv was able to switch from 60hz to 144hz when I changed the resolution so I thought the monitor would be able to do the same thing. Now that I realized it doesn't, I'm having serious trouble deciding whether or not to return it and go with 1440p 144hz. I feel like I don't really need the higher frame rates as I play mostly open world, single player games on pc but I've also heard you can't really tell the difference between 4k and 1440p at 27".
What GPU do you have? If you dont have a 1080ti, then anything over 4k/60hz does not matter cause you wont be able to push it. But there is a difference between 4k and 1440p. 4k looks amazing. Especially on single player open world RPGs. But the 60hz is an issue when playing quick twitch shooters.
In short, if you have a 1080ti, then keep the monitor and forget about overclocking cause you cant push much over 60fps anyway. If you have a 1080 or lower, then go for a 1440p/144hz panel.