Looked long and hard to find confirmation on whether anything would come out Q3/4 this year,
only to find potential problems with the manuf. process of 28nm chips.
http://lenzfire.com/2011/07/nvidia-kepler-2012-and-maxwell-2014-release-date-official-2-84329/It seems Kepler is pushed to 2012 earliest, since AMD uses the same company (TSMC) that could mean delays. Other sites also report the problem with making 28nm chips.
Sucks for miners, things are already getting pretty unprofitable in the short term with current hardware price/performance + electr. costs.
I found this news article which was just released a few hours ago.
http://www.pcper.com/news/Graphics-Cards/AMD-CFO-States-They-Will-Have-28-Nano-meter-GPUs-Out-YearWe also passed several critical milestones in the second quarter as we prepare our next-generation 28-nanometer graphics family. We have working silicon in-house and remain on track to deliver the first members of what we expect will be another industry-leading GPU family to market later this year.
We expect to be at the forefront of the GPU industry's transition to 28-nanometer.
Hoping he's right and they beat Nvidia to 28nm this year & it's not just marketing