Along with the OpenCL SDK 3.0, a new release of the APP OpenCL Optimization Guide was released (December 2014). However, it is not fully updated. For instance, only the Southern Islands device parameters are available (section 2.10, table 2.5). It wouldn't be hard for the document writers to provide the respective tables for all newer devices, would it? Just to mention Sea Island devices (e.g. R7-260X) or Volcanic Islands (R9-290X).