[ShinyObject]

This is actually a rather bad time to buy a high-end monitor because if you get one right now it will likely be outdated by the end of the year.

If you want a monitor that can do all of the cool things at once (2160p, hdr, 120Hz+, freesync) without using hacks like dual cables or realtime lossy compression, then you need both a video card and a monitor that support hdmi 2.1 or displayport 2.0.

Currently there are very few monitors that support the newer hdmi/dp standard, and there are no video cards that do. However both of the new consoles scheduled to be released later this year (xbox series x, ps5) will support hdmi 2.1. This also implies that upcoming discrete gpus will support this as well.

This means if you want a monitor that can do everything, right now there are only a tiny number of screens, and no video cards. Barring any delays, the situation should be very different in a few months.

[fomine3]

Agreed. I expect more products released with new interfaces.

BTW current GeForce and RADEON supports DisplayPort DSC that could enable more resolution / frame rate by compression theorically but I don't know any existing displays.