TBH,the crap exchange rates affects Intel CPUs too,so in the end we can only compare relative to Intel.
4C/8T at slightly under Core i5 7400 pricing,with an unlocked multipler - even if the parts don't overclock as well as an R7 1700,its got SMT and a clockspeed advantage over the Core i5 7400.
Forget the R5 1600X,the R5 1400 will save you enough money to get a decent RX480 8GB or GTX1060 6GB over a RX470 4GB or GTX1060 3GB.
Now,I am more interested to see what that Twitter post about the fixes will mean for gaming performance. If it means SMT can get more consistent scaling in games,AMD is onto a winner.