New Raytracing possibilities

Hi! Just to discuss future tech stuff and not to compare render engines.

Andrey Kozlov wrote some days ago:

Working on a new ray-tracing acceleration structure. Ray tracing speedup up to 5 times on heavy geometry. Faster than Nvidia RTX. Faster geometry compilation up to 2 times.

How is it possible for software(?) raytracing to run faster than specialized hardware? Exists some white papers that discuss new possibilities?

Cheers,
Giorgio

Sure, for example Corona and V-Ray are using these raytracing acceleration libraries: https://www.embree.org/

Thanks! So exists new technologies and therefore libraries to implement faster path-tracing than Embree one? My idea was that all path-tracer render engines were similarly powerful in standard scenes and equivalent horse power.