There’s not that much hands-on data on the very topic, unfortunately.
Check this one out and draw your own conclusion:
Also, this civilised thread where the community posted their own findings (especially later on!):
https://forums.unrealengine.com/community/general-discussion/118650-intel-i7-6800k-or-amd-ryzen-7-1800x/page2
Generally speaking, with Intel’s 8700k you will get great overall results. Especially with a modest overclock. Ryzen’s super duper multicore setups will beat it in certain workstation oriented scenarios. If you’re builing a dev-only platform - as in, it will never be used for gaming, Ryzen will be actually a better choice unless you want to spend 1k for an Intel chip - money you’re better off investing elsewhere, like a 2 quality monitors!
Games do work well with Ryzen, just not as well as with Intel’s CPU due to their great single core performance.
2,5k euro is a lot of money! With the video card market stabilising after the crazy cryptocurrency craze, it’s a great time to build a PC again.