The Falkor engineering sample has 46 cores and is clocked at 2.5GHz, which is lower than the 48 cores at 2.6GHz that will be offered by the final version. On a core for core basis, Intel's Skylake is far superior but in terms of overall system performance the Falkor is very attractive and also has a much lower power consumption.
The image below is just one of the many benchmarks performed by Cloudflare, you can check out all the other the benchmarks over here. ARM-based servers will need to mature more but it's clear that AMD's EPYC isn't the only thing Intel has to worry about in the server processor market.