gordesky1 - sorry I won't be of any help to you but can you share your settings for the 580?
I am getting approx. 640 H/s in Hive making Hive report 7.67 kH/s for my 12x GPU rig and anywhere between 4 to 15 on the luckypool so it'S tough to tell how are my cards performing. I am using XMR Stak.
Thanks for any ideas!
im using sbrminer and my settings for the 580 is also its a 8gb model. devil rx580
{ "id" : 1, "intensity" : 40, "worksize" : 16, "threads" : 2},
and i set threads from false too enabled and that alone boosted it right up.
this is the 390 { "id" : 0, "intensity" : 40, "worksize" : 8, "threads" : 2}, tried higher worksize did nothing...