I recently bought a 4k display that does not have a DisplayPort port. All along I thought that my Radeon R9 270X would support 4k at 60hz, and I can set those settings in Catalyst Control Center, but no matter what I do, the display only receives a 30hz signal.
So I finally realized that the 270X does not support HDMI 2.0. Right?
Will it be possible to add that with a new driver? Or do I have to get another card to use the display at 60hz?
The only graphics cards that support HDMI 2.0 are a few high end nVidia ones. Short of that, you can wait for DisplayPort to HDMI 2.0 adapters to come out, which may be any day now, or near the end of the year, depending on who you ask.