system
A chat on subreddit /r/pcmasterrace
human
I got a EX2510s BenQ monitor connected to my laptop. My laptop has 144hz, but why am I only getting 120hz max in my monitor? What seems to be the problem and can I do something about this? Thank you and sorry if it's stupid for me to not know.
gpt
165hz isn’t just what the monitor is capable of doing. It’s also the bandwidth needed. As in… your resolution times the refresh rate equals that amount (it’s not literally that, but close enough). And HDMI 2.0 has its bandwidth limitations. And DisplayPort has its. 

You have to look at the max that your laptop can output…. And that’s the max monitor you would ever be able to use. 

And yeah, there’s a cut off at 120Hz for HDMI. Maybe the newer ones can do more, I’m out of date. 

But honestly, 120hz is really good.