2700x, 2600x, where are the benchmarks?

April 19th is launch date for those processors. Testers that received processors for testing, getting BIOS ready, drivers etc. are obliged not to release results until that date (NDA contract). There are some speculative and unofficial test and bechmarks, just Google "R7 2700x" and you'll find some.
Those tests seem to show about 10-14% increase of performance over 1800x and top turbo up to 4.3 - 4.4GHZ.