As you may have guessed by now, mining hardware is all about hardware. It has little to do with software. A GPU miner has everything he needs to mine with a few clicks. An ASIC miner needs a large sum of money. It’s all about the hardware.
Some miners—particularly Ethereum miners—buy individual graphics cards as a low-cost way to cobble together mining operations. In this case, they’re buying them for the purpose of mining. These are often used to run the Ethereum network.
The best ASICs are many orders of magnitude more powerful than CPUs or GPUs Mining. These devices have been optimized for mining Bitcoin and can produce over 200 TH/s at energy efficiency of only 27.5 joules per tera hash.
Is it legal to mine?
This is why bitcoin is completely illegal in certain places. It’s legal to own or mine bitcoin in more countries than not. Some examples of places where it’s illegal according to a 2018 report included Algeria, Egypt, Morocco, Bolivia, Ecuador, Nepal, and Pakistan.
Cryptocurrency, or Bitcoin, mining is now illegal in some countries, including Bangladesh, China, Dominica, North Macedonia, Qatar, and Vietnam. In total, there are currently about 11.5 billion Bitcoins in circulation, according to CoinMarketCap.com.