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For AMD GPUs (search for "double precision"):
For NVIDIA GPUs it's better read about the architecture detailds:
For intel IGPs: it's a waste of time searching for Intel IGPs FP64 support....


EDIT: for nvidia GPUS I found this:

Please note that it speaks about CUDA support.

Edited by Alessio1989

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I appreciate the help.  I went through the links you posted and didn't quite find what I was looking for.  I was thinking more along the lines of CardCaps.xls but a bit more up to date.


That said I've decided to use fixed point math instead of doubles.  There's a few key functions (namely modf, or an equivalent) that don't support doubles, so I can't use them anyways.

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