Looks like Linus Tech Tips has posted some benchmarks on the 1800X and it looks pretty dang good!
View: https://www.youtube.com/watch?v=9wJQEHNYE7M
With NCIX benchmarking the 1700X
View: https://www.youtube.com/watch?v=cYjbVXkoC50
With NCIX benchmarking the 1700X