Bad Performance with two ATI RX570

[Zottel87]

Hi,

I bought 2 Sapphiere Pulse Radeon RX 570.
If I use the Claymore Mining tool I geht only 18,2 Mhs per card. (Both cards together 37mhs).
I think thats insufficient.
I don't use RiserCards.

Both Cards have Elpida RAM and I use the ATI driver Adrenalin 17.12.1
I think it is strange that the MSI Afterburner shows me that the GPU Clock has 1284MHz and the RAM Clock has 1750 MHz.
I think the RAM clock must be 3500MHz in stock.
Is this correct?


Has anyone an idea to fix this Problem?