After many many hours trying to get the best hashrate out of my vega 56's, this is the simplest way i have learnt to get over 47MH/s on my vega's. No need to flash bios or do much tuning. My GPU's have

As you may know, Ethereum mining is so profitable atm that its nearly impossible to buy any new GPU's. There are used gpu's on ebay but the prices are reaching that of brand new cards (which you cant buy

2 x MSI RX Vega 56 8GB 1 x ASrock phantom gaming Radeon RX Vega 56 8GB All using Samsung memory Core clock 1407 MHz, 900mV mem clock 950 MHz, 1070mV 430W + mobo & cpu , 130 MH/s 1250W ozC ZX series