The article also mentions they needed to enable DisplayPort 1.2 MST for the full 60Hz refresh rate, so I'm inferring that the monitor might be detected as two s

The article also mentions they needed to enable DisplayPort 1.2 MST for the full 60Hz refresh rate, so I'm inferring that the monitor might be detected as two screens (a left-right split). If someone has more info on 4Kp60 and displayport, please chime in. Note that both nVidia and AMD support MST on their major products, including AMD APUs if the motherboard has displayport.