Those graphic cards (as of right now) have a very hard time mining the more sought after coins. So, miners use those to mine the lesser known and easier variety. But as they continue to mine and as more people jump in, the difficulty rises exponentially. Sooner or later changes will need to be done with some changes that could make or break this game.

I always glad to see developers allow users to run games at incredibly unrealistic settings simply because its a testament of how well the game was coded for any situation. But I don't think I'll play overwatch at 100 x 100 resolution...