It's possible to be diagnosed with aspergers traits rather than aspergers, and I think I heard it was possible to have psychopathic traits without being a 'full

It's possible to be diagnosed with aspergers traits rather than aspergers, and I think I heard it was possible to have psychopathic traits without being a 'full' psychopath as well. So it definitely seems possible there could be an overlap in some cases. You could also literally have both at once, since these conditions/states/differences/whatever aren't necessarily mutually exclusive.