If it's a CRT then the higher refresh rate the better as many people would see flickering at 60-75 hertz.
If it's a TFT monitor then 60 hertz is probably OK although the manual should state the optimal setting.
Hands-on: Acer Predator Triton 700 review
D&AD Awards 2017: see the best design, advertising, illustration, animation and VR of the past year
How to lose weight with an Apple Watch
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.