Hi There, I'm not that expert in mining or not related to as I don't have that much money to buy powerful ASIC machines to mine bitcoins...
But, according to btcgpu.org Bitcoin Gold is for GPU miners.
and that can really mine a lot of money using GPU's right?
How much money they can make with AMD RX580 8GB? Seems like a noob type question but really interested to know... 
Buddy, what you heard is right, Bitcoingold is mined using gpu cards and it is asic resistant. But now we cant say much about its profitability because I heard its mining will start from november15th. So lets wait till then. Even I am also planning to mine it. Just waiting for miners reviews about it. If its profitable I will try a hand on it . Hope its price will increase in future.