AMD has released a bunch of slides in regards to their GPUs and their APUs:GPUs:http://www.anandtech.com/show/9233/amds-2016-gpu-roadmap-finfet-high-bandwidth-memory
First and foremost, 2016 will be the year of FinFET across AMD, both for the CPU and GPU. Just like Zen, AMD will have GPUs on an unnamed FinFET process in 2016. AMD isn’t saying much else about 2016 at this point in terms of chips or architecture, but they are saying that the combination of the 2016 architecture and the use of FinFET will result in a 2x improvement in energy efficiency over what AMD is calling their “previous generation GPU” (though it’s not clear if it’s relative to an existing GPU or something else due in 2015). Based on AMD’s comments, it sounds like the majority of these gains will come from the use of the newer manufacturing process, as opposed to architectural efficiency gains. AMD is also mum on which fab will be building this GPU, however the timeframe is such that it lines up with TSMC’s 16nm FinFET plans, with TSMC being AMD’s traditional fab of choice for GPUs.
If it is true that they are going with TSMC, then we may not see a Global Foundries GPU after all?
The other question - a double improvement in energy efficiency? I suppose it's possible (Nvidia made a jump from the 580 to the 680 that was very impressive Fermi to Kepler saw huge jumps and if there is a FinFET process, they will have the benefit of a die shrink too).APUs:http://www.anandtech.com/show/9231/amds-20162017-x86-roadmap-zen-is-in
In terms of features, AMD once again confirmed that they’re aiming for significantly higher performance, on the order of a 40% increase in Instruction Per Clock (IPC) throughput. In a significant shift in threading for AMD’s x86 CPUs, Zen will also shift from Bulldozer’s Clustered Multithreading (CMT) to Simultanious Multithreading (SMT, aka Intel’s Hyperthreading). CMT is the basis for Bulldozer’s unusual combination of multiple integer cores sharing a single FPU within a module, so the move to SMT is a more “traditional” design for improving resource usage, and it means Zen will similarly have a more traditional resource layout. AMD is also labeling Zen’s cache as a “high-bandwidth, low latency cache system,” though at this time they aren’t quantifying just how that differs from the Dozer family’s cache.
Meanwhile AMD has confirmed that Zen will be shipping in 2016, and that it will be produced on a yet-to-be-named FinFET process. Our bet would be that AMD continues to use traditional partner (and spin-off fab) GlobalFoundries, who will be ramping up their 14nm equipment for next year as part of their licensing/partnership with Samsung to implement Samsung’s 14nm FinFET process. Zen at this time is AMD’s priority, to the point where the company is willing to push back the ARM K12 in order to get Zen out the door.
If they actually pull off a 40% IPC improvement, that would be huge.
Edit: Should this be merged with the AMD Financial Analyst thread or is Anandtech's analysis worthy of it's own thread?