Thank you for that, please can you educate me regarding the PWC abbreviation.
Then, would you recommend or suggest i rather get a PowerColor RX470 Red Dragon or PowerColor RX470 Red Devil (they both 4GB) and i have to specify with no bios mod, the PowerColor RX470 i have with Samsung , runs at 23.3 MH/s at EPOCH 144. Or do i get the Asus Mining card instead.
I am just not sure. They are priced the same here, BUT the PowerColors i can get are Recertified with 9 Months warranty on the Red Devil 470 and a bit more on the Red Dragon RX480
As far as i know they are both 8 pin connectors... and they run well on Power too never exceeding 120 Watt.
Have to say sorry that I couldn't help you with investment solution. I only do the tech part, my other friends do the money calculate

, my job is rig-building with the hardware they gave me. If the price is the same I suggest you choose the one with better Memory or have longer warranty .