> There are many GPUs with no double precision floating point support in hardware.
Which ones? I'm genuinely curious about this.
Which ones? I'm genuinely curious about this.
Those are all quite old now of course, but even modern GPUs may not have 64-bit ALUs and rely on emulation instead. Intel Gen11 in Ice Lake, for example: https://01.org/sites/default/files/documentation/intel-gfx-p...
In mobile architectures 64-bit ALUs can be an optional feature that is omitted for lower end configurations. I know this is true of PowerVR.