..don't compromise.
I did. It went very wrong.

I own two fine Samsung 2233rz monitors and I use them as dual monitors. The 2233rz has the port standard of his time, DVI. For 120 Hz, dual link output is needed.

I got a new PC with graphics card HIS Radeon R9 280.
Ports available: 1xDVI dual, 1x HDMI (1.4a), 2x mini DisplayPort.

Now, DVI-D or DVI-I in dual link pinning will always give you 120Hz for at least 1080p and lower resolutions. Good old trusty DVI.

HDMI is basically useless. There is no way I know of to get even low resolutions at 120 Hz... can't even overrule the predefined resolution/refresh settings....60 Hz is max.

DisplayPort _should_ theoretically have been fine, but it isn't. Because to convert DVI to DisplayPort, an "active" adapter is needed, which is horribly expensive (80-100 eur). Such bullshit, why not think of this converting issue from the start.

So anyways, I made this thread to 1. warn you about HDMI and displayport, which are pure shit if you want compatibility,
and 2. ask if anyone maybe has found a solution or workaround for this?


Edit: I found a non-expensive active mDP to dual-link DVI adapter:
"Delock Adapter mini Displayport 1.2 DVI 4K Aktiv"
I emailed the manufacturer to ask if 120hz is possible, I'll update if I get an answer

Edit: Pretty late answer lol, because the manufacturers never replied to my inqiry, but in the meantime I bought the adapter and it works with 120hz. (but slightly buggy with sleep mode)