Benchmarks for AMD's new Ryzen 7 1700X chip have appeared on SiSoft SANDRA's benchmarking leaderboards. The chip, which may be pre-production and not fully optimized, gives a strong showing against several Xeon chips, the i7-6900K, and i7-7700K.
http://www.notebookcheck.net/Leaked-AMD-Ryzen-benchmarks-show-close-competition-with-Intel.197510.0.html