[WindowsCentral.com]

Elgato's most impressive capture card yet is far from perfect, but it's a good product for serious Xbox One X content creators.
4K video is hard. More pixels means more power to process them, whether you're playing a game or rendering a video. For gamers, even playing a game at 4K resolution requires serious GPU power. And existing 4K capture cards are very expensive.
Microsoft has changed the game with the Xbox One X, a console that costs less than a high-end graphics card that is capable of delivering games natively at 4K60.
It's no coincidence then that Elgato launched the 4K60 Pro at a similar time. This capture card costs $399, which is a lot, but it can match that 4K60 output of the Xbox One X.

Full story from the WindowsCentral blog...