The architecture analysis suggests that AMD has made great strides with respect to not only memory bandwidth, but also the speed of the various caches.
On the first front, according to an unoptimised version of AIDA, that is indeed true, as Ryzen 7 1800X is able to mete out scores above the also-dual-channel Intel alternatives.
Latency, however, is lacking, and after speaking to AMD, it should be shown as improved in the next iteration of this benchmark.
Closer examination of cache-level performance - Ryzen 7 1800X vs. FX-9590 vs. Core i7-6950X - shows that, indeed, the new Zen chip is much faster than the FX. Intel, however, keeps a solid lead in the closest-to-core L1 but gives it back for L2 and, mostly, L3.
The new Ryzen processor is, at the risk of mentioning ad nauseam, much more like Intel than ever before, and AMD has done a good job in feeding those execution units to the brim.