Well, no one is going to mine a bitcoin using the cards that are used for the puzzle so you have to break it down mining alt coins like eth, and convert earnings to bitcoin to get an estimate. Pretty sure more is made from mining AND it's guaranteed (if in a eth pool, or solo if you have enough juice) versus you may run cards 6 months, a year, 2 years, and never find puzzle key(s).
The problem with ethereum mining is that the memory requrements need cards with over 4gigs of memory. <4gb cards have few profitable coins to choose from.
A rx 570 4GB card earn around $1.7 mining vertcoin with the spminer, (570 khash)
a rx 570 8GB card earn around $2.90 mining ethereum.
A few months ago the profit was as low as $0.25 and could barely cover the power cost.
- Bitcrack doesn't need an internet connection
- Bitcrack provide anonymous mining revenue in bitcoin
The puzzle transactions are hard, but not impossible to solve