http://videocardz.com/62117/amd-confirms-radeon-rx-470-and-rx-460-specifications
According to this article, which I would take with a grain of salt, the RX 470 is confirmed to be released by the end of this month, the release of the RX 460 is unknown, probably the end of August. This card's performance, based on the spec sheets put's the AMD RX 470 so close to the RX 480, however, the FireStrike score may tell us a different story, which may prevent it from being the Price/Performance King.
The RX 470 is placed right under the R9 290 and GTX 970, but places it close to where an OC 470 could beat out a Stock 970, but this is the problem, there was also a benchmark with FireStrike that putted the 480 near GTX 980 levels, but real world performance said otherwise. At the same time, it's also placed close to RX 480 in performance on the spec sheet, so god knows how powerful this card is gonna be.
I was more hyped for this card than the RX 480 and 460, but I won't give my hopes up on it just yet, this would be a very great card to put in a laptop since it only uses 110W if it stays cool decently. Sounds like a lot, but a GTX 980 only uses 160W, didn't stop them from having a desktop grade GPU in a laptop. Hopefully NVidia can spice it up with the GTX 1050 before I buy some computer parts (won't be until Zen comes out)
As far as the RX 460 goes, I am pretty far from hyped on this card, the performance gap is said to be way too big to be worth saving $50, bottom line, the RX 470 would be a better buy, even if it winds up performing only like an R9 380. I am sure this will be a great card for a laptop, a shame that AMD wants to use the same chipset to make the RX M480 the same as an RX 460 with 2 extra CU's (RX M480 having 16 CU's, RX 460 apparently has only 14 CU's) when the RX M480 could have been an RX 470 and save the RX M490 for a mobile Vega card. Would help them compete with NVidia with laptops a little bit better. This GPU is great if you have an ultra-small computer too probably, better than Intel HD graphics or Iris graphics. Or if ya gonna Crossfire with a Zen APU perhaps. Other than that, the GPU doesn't excite me, not cause it's poor performance, but it's not good for the money compared to their higher offerings at all.

