1 Reply Latest reply on Jul 25, 2013 4:59 PM by rahulgarg

    Which cards support "Extended double precision"?

    rahulgarg

      Direct3D has two levels of optional double precision support in shaders: Basic/default and extended. I was wondering, which AMD GPUs support extended double precision under Direct3D?

        • Re: Which cards support "Extended double precision"?
          rahulgarg

          To answer my question (partially), I have verified that the extended double precision instructions are at least supported on GCN cards. However, it appears (surprisingly)  that Trinity/Richland APUs do not support fp64 at all under DirectCompute. I have no idea about 5800 series cards but my guess is they do support all fp64 functionality under DirectCompute.