Just another flaw in software or lack of updated info, same as few Apps/Benchmarks shows that Lumia 950/950XL has only 2GB RAM instead of 3GB, so I guess it is the same here, showing 950XL A430 GPU instead of 950 A418. In other words it would be not possible anyway, because it should be S810 too, to have it.
I understand that, but what you mentioned is just technically impossible, I guess.