Hi there 2 years late. But this is now possible with powered active adapters that are coming down in price. However it's still risky testing, I had issues testing this setup on my Mac Pro with a PC r9 280x with the HDMI port but it sort of worked. However I had complete success getting my display working with my Xbox One X. Let me know if the link doesn't work for you, I made this post myself on Reddit after many years searching for solutions for PCs and laptops, I do also have an older adapter made by Kanex that was discontinued that can convert mini displayport to dual link DVI and needs to be USB powered but works perfectly!
https://www.reddit.com/r/Xbox_One_X/comments/9fozbs/xbox_one_x_1440p_2560x1440_on_the_apple_cinema/?utm_source=reddit-android