No difference. If only those chosen by God are regenerated then the rest are condemned either by the active or passive exercise of God’s will.
There is a difference — if you choose some hamsters to adopt, but among the ones left some kill each other. You haven’t killed the ones who die.
But if you choose some hamsters to adopt and kill the rest, that is active.
Augustine and Luther that God chooses some and the others can be damned of their own will is different from Calvin’s God creating and damning people