Depends very much on your requirements / wishes... I myself have connected a WHD monitor with 160 Hz. However, with this graphics card you can operate pretty much any monitor and even several monitors.

Hi. I have an HTC VIVE Pro connected and a normal flat screen monitor to operate the PC. But I bought it mainly because of the VR. Soooo awesome.. :-) Greetings Robert.

Acer Z35P (35", 3440 x 1440 Pixels) I can only recommend it as a super thing