The link above it's very well explained

i'm doing some math comparing the hashrates people are posting with the actual earnings of the B3, the good thing is i can buy 3 1050 for 500 the bad thing is i have to add a cpu + 8gb ram + motherboard (100 but it has 3x x16PCI slots) + PSU
in total its nearly 870 for approx 6 day at current diff and price
Also i'm mining 0xBTC and with a 1080ti it's possible to make approx 5 0xBTC/Day, current price is approx 1.6 that makes 8 per day, also a 1080ti costs me 650 and i don't have to buy another PSU
Arrrggggg it's so tempting to try this Bytom thing!
Are there any expectations to optimize the Bytom miner for 1070+ cards?