What is good about forged parts?

“The best thing about a forged piston is its lightness. Because a piston is always moving at high speeds, its reciprocating inertial mass is important. A forged piston has a roughly 20% smaller reciprocating mass than a cast piston. That means smoother revving engine performance. Whatʼs more, a smaller reciprocating mass minimizes vibration, which contributes to a high quality running feeling.Also, a forged piston has good durability in high-temperature use that makes it a must for race engines and other high-performance engines.