Can't test mining when dev don't have the cards to update their mining softwares. It's RDNA, not CGN anymore.
Understandable...but i'd expect at some level openCL hardware abstraction would be able to hide
hardware and do it in unoptimized way...maybe those 4MH/s someone mentioned are
measured that way, but sounds way too slow
Someone just has to compile the open source ethminer under new RDNA compiler. Even with no updates Wave64 code should be able to run nearly twice as fast on RDNA...ill see if I have some time to post a compiled binary later. No reason why these wouldn't run 40+ MH with unoptimized code/timings.
Based on reviews though the OpenCL compiler seems to have major issues so that could be part of the problem. (they probably did it on purpose to keep miners at bay until gamers buy them

)