I'm an early adopter of 4k60. If you write code and you're not on 4k, you don't know what you're missing. 4k is great.
Back then display port ran at 60fps, and hdmi ran at 30fps. My hardware has changed and moved on, but I still default to using a display port cable. It's rare to not find a graphics card without display port, and it's rare to find a monitor without one, so I've never had a reason to try HDMI. As far as I can tell it's a stubborn format that continue to fight to live on. Frankly, I don't really get why we still have HDMI today.
Back then display port ran at 60fps, and hdmi ran at 30fps. My hardware has changed and moved on, but I still default to using a display port cable. It's rare to not find a graphics card without display port, and it's rare to find a monitor without one, so I've never had a reason to try HDMI. As far as I can tell it's a stubborn format that continue to fight to live on. Frankly, I don't really get why we still have HDMI today.