Originally Posted by magnek
GP102 has exactly zero DP units, so I don't think it's capable of DP period.
GP100 actually has a 2:1 ratio of SP:DP units, and it has only 3584 SP units, not 3840. So it's 3584 SP units + 1792 DP units, along with HBM memory controller. Quite a different beast compared to GP102.
That's what I am not really sure about. IF GP102 is indeed like GM200, that's 100% true as GM200 was designed to just be a single precision rendering monster.
What's really key is trying to figure out how much die size is used in GP100 for a HBM2 controller, and to compare the compute part of the GP100 die to the GP102 die.
GP100 is supposed to be 610mm2, while GP102 is 471mm2. If you take away the memory controller sections on both GP100 and GP102 and they are the same, that tells me GP102 does have double precision. However, if you do the same thing and GP100 is larger than GP102 anyway, then that would confirm that GP102 is indeed more like GM200 and is double precision gimped, while GP100 is more like GF110 (with the double precision parts on it.)
If that was the case then, imagine a 610mm2 single precision die... that thing would be immensely powerful (comparing to GP102's 471mm2.)