AMD could be preparing discrete Polaris GPUs for entry-level gaming notebooks with prices as low as $700 USD.
http://www.notebookcheck.net/Upcoming-Asus-X550UI-may-be-shipping-with-RX-460-graphics.194746.0.html
it's already available in stores in Indonesia for 700$~, it has RX 460 with 4gb vram. The gpu performs slightly faster than gtx 960m, maybe around 10% faster.