The site heard AMD's Volcanic Island refresh is expected to utilize High Bandwidth Memory (HBM), a new form of memory stacking that promises significantly more bandwidth, lower power consumption and higher density.
Also leaked is the following list that reveals basic pointers about AMD's 2014-2016 GPU roadmap:
Volcanic Islands will be replaced with Pirate Islands somewhere in the second half of next year. What’s important here, Pirate Islands will be the first 20nm series. This basically means we are more than a year from now till 20nm node arrives from AMD. The 20nm process will not be our guest for long, AMD will quickly move forward to 14nm process with Pirate Islands Refresh.
28nm TSMC 1H 2014 : Hawaii, VI 1.0 28nm GlobalFoundries 2H 2014 : Iceland and Tonga, VI 2.0 28nm GlobalFoundries 1H 2015 : Maui, VI 2.0 20nm GlobalFoundries 2H 2015 : Fiji and Treasure, PI 1.0 20nm GlobalFoundries 1H 2016 : Bermuda, PI 1.0 14nm GlobalFoundries 2H 2016 : Mid-GPU and Low-GPU, PI 2.0 14nm GlobalFoundries 1H 2017 : High-GPU, PI 2.0