I Have RX570 Hynix memory, vendor is Digital Alliance ( Data land )

Ethash
Stock bios : 22 MH/s
Modded bios : 28 MH/s

Cryptonight
Stock bios : 750 H/s
Modded bios : 850 H/s ( CAST-XMR )

If you have same card with me, i can send you bios files