I have 50 Sapphire RX 570 4gb Elpida memory cards, they are all exact the same and the results I have from them:


some GPU can handle only 1950 mhz on memory
some GPU can handle 2125 mhz on memory
some GPU can run at 800mV on memory voltage
some GPU can run at 875mV on memory voltage

I prefer to work with this version of Polaris Bios Editor
this is not an advertisement, so I’ll take a couple of hundred dollars as bagarness)