Hi there and thanks for visiting Old School Game Blog.
If you are interested in learning more about AmigaOS 4.x and the systems supporting it, I recommend having a look at the video below. It was made by Paul Rezendes, who has a YouTube-channel you can visit here. The video is about his AmigaOne X5000 system and how it performs using applications, playing games and so forth.
It’s worth mentioning that the AmigaOne X5000 is still available for purchase and that another system called AmigaOne A1222 Tabor is scheduled to be released this year.