I'm writing this post with the dual goals of warning other potential buyers and perhaps receiving some helpful feedback.
In short, the Radeon RX 5700 XT is absolutely useless for Go analysis as of November 2019.
In Windows 10:
- Leela Zero will - if it even starts at all - crash within seconds due to invalid mathematical results
- KataGo will - if it even starts at all - crash within seconds due to invalid mathematical results
- Lizzie app - numerous graphical glitches in menus whether using CPU or GPU version
- clinfo doesn't detect the card
- cannot build a functioning GPU Leela Zero from source
- numerous system crashes due to GPU driver instability when playing games
Sadly, it's a miserable failure for the third.
On a related note, these cards also send bad data to SETI@Home when crunching work units. Again, this is an OpenCL support issue.
I'm hopeful that AMD gets this straightened out, but with these cards on the market for 3 months, racking up complaints and crash reports for 3 months, and no improvement yet... I'm not optimistic.
Caveat emptor.