What is the difference between cast and forged irons

The main difference between forged irons and cast irons is in the way they are created. Forged irons are molded from one solid block of malleable metal and then pounded into exact shape and finally ground and milled with various grooves and lettering to finish the process. On the other hand, cast irons are created by pouring liquefied metal into a die cast that forms the club including all grooves, lettering and iron number etc
Forged irons are generally made with a less forgiving nature and have a relatively small sweet spot that requires a player of good ability to hit them consistently from the center. The forged irons have long been considered clubs for the advanced players for this reason. These clubs also offer the players better control and more feedback – something that a low handicap golfer or a tour professional would like to have from his iron shots.
Modern club making technology has helped manufacturers make forged irons also come in easy to hit cavity back clubs that have a larger sweet spot, thus making them a good choice for the average club golfer.
Cast irons have a much more forgiving nature and high handicap golfers can get better performance out of them. They also are more comfortable to use because they have less vibration when mishit and will often times still deliver a good shot even if the ball is struck off center. They have a much larger sweet spot that minimizes the effect of an off center shot and helps the handicap player hit it more consistently.