Bitcoin BTC miner rewards: ~$35 million per day Zcash ZEC miner rewards: ~$2 million per day However, Grayscale Research believes Zcash mining is more profitable, with rewards ~2x higher per mining rig and ~4x higher per megawatt hour (MWh). Greater profitability has driven total Zcash mining activity up more than 2.5x this year. Read more on the benefits of Zcash mining: https://www.grayscale.com/the-stack/zcash-mining-is-taking-off(Grayscale)