Professional chainsaws are unequivocally the most powerful in the market. They are specifically engineered for heavy-duty tasks such as felling large trees, cutting through thick trunks, and prolonged use in challenging environments. These chainsaws often come with larger engines, more robust build quality, and features that cater to professional lumberjacks and arborists. Their power output, measured in CC (cubic centimeters) for gas models, is typically higher than that of homeowner or battery-operated chainsaws.