Question is a 144hz worth it with a 60hz side monitor

Jan 2, 2019
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So I've recently built my PC, I'm currently using a 60hz 1080p monitor and planning to get a second monitor do i can use dual monitors I was wondering is it worth for me to get a 144hz monitor for around $330 CDN or just get another 60 hz 1080p monito for $100 CDN? I did some research online and saw that having dual monitors with different refresh rates causes stutters and fps drops in game on the 144hz monitor when having any kind animations on the 60 hz monitor such as watching videos which really seem like a big problem to me. I would like to be able to run at 144hz while doing other stuff such as browsing and watching videos on the 60hz without having stutters on either montior. Keep in mind that I've have never seen or used a 144hz monitor before so i don't know the difference.

My current pc spec are:
  • Ryzen 5 2600x
  • GTX 1660ti
  • 16GB DDR4
  • Asrock x470 motherboard