Saky94 :
http://wccftech.com/wipamd-radeon-300-series-officially-launches-r9-390x-r9-390-r9-380-r7-370-r7-360-performance-specifications-detailed/
Check this out, scroll down to see the benchmarks.
tomspown :
In GTA V 390x has same FPS as 980 so its better than 970.
http://www.guru3d.com/articles_pages/msi_radeon_r9_390x_gaming_8g_oc_review,13.html
First, that is only 1 game.
Second, the link YOU posted shows the 980 scoring the same or better except at 4K with 1 FPS less.
Third, overall it tied with the GTX 980 and fell several points below the GTX 980Ti.
Finally, yes the R9 390X might be a bit better than the 970...never said it wasn't. I said the GTX 970 will hold it's own and I still believe that. For AMD's NEW card, it hardly passes the GTX 970 which is already over 6 months old. So congrats to AMD for BARELY beating a 6 month old card with their newest release.
Again this is my PERSONAL PREFERENCE