Why should you always check the profitability of your ASIC miner?
You must check the mining profitability to use the most reliable miner. If you have an ASIC miner, you can switch between different coins as they become profitable and keep mining the most profitable coin at any time. ASICs are faster than GPU mining rigs and can hash at speeds between 10-100 times faster than GPU. Read here
https://asicminercompare.com