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A Beginner’s Guide to Mining Cryptocurrencies on the Mac. Bitcoin mining difficulty increasing you need specialised hardware for mining(ASIC). Without it, you can use a very fast graphic card, but unless you have free electricity, it won’t even repay itself. GPU mining is not supported for most Macs with most mining softwares. CPU-only mining is meaningless. CPU mining is useless. ASIC mining rigs bring economies of scale to operations because they are relatively inexpensive and more efficient (as compared to GPU rigs) at processing hash functions.