3 gb can has as much as 6gb, depends on ram, Samsung the best

my asus 3gb dual fan can only do mem 750-900, each card huge different.
zotac 6gb all can do 1000 mem, but i run at 900 more stable.

both my asus and zotac are doing 24-25mhs per card.

you guys should really get the latest claymore 9.7, its has improvement on gtx 1060. i getting about 8% extra hashrate compared to claymore 9.6

D3 i know one guy manage to get 1 unit.