3 ms·

I don't think so? It's not something I've ever noticed, though have only been working on AMD GPUs since GCN (~12 years ago) I'm not sure the ISA even allows so

• dogma1138 2y ago
  GCN definitely only effectively supported FP16 on the TMUs not sure about RDNA.
  • kimixa 2y ago
    I'm not sure that meshes with my understanding. Do you have any links you can share? Or maybe we're talking past each other - bandwidth and interpolation requirements mean that lower precision does tend to be faster - even on nvidia. unorm8 is often the quoted "texels/second" precision, as to this day rgb888 is the "most common" texture format in games/apps/desktop environments. I think GCN had fp16/int16 at 1/2 that (I think RDNA increased that to 1/1), fp32/int32 at 1/4 and fp64 at 1/8. But that's pretty much the same as nvidia's texture filtering rates, abut I don't think there's a "hard cap" or internal limit of fp16 precision?