A link to the download is included in the article, but considering Vega 64 averages 58FPS at 1920x1080, it's pretty telling that only minimal, if any, ray tracing will be capable on RX 500 and earlier series cards from AMD, which is pretty expected given the computational demand of ray tracing. It's a 4.35GB download, so with my limited data cap I can't download it, but it would be interesting to see how older cards, like the Fury series, performs, though I'm still expecting all pre RX hardware to be dropped to legacy support very soon.
https://www.wccftech.com/neon-noir-cryengine-hardware-api-agnostic-ray-tracing-demo-tested-and-available-now/