jaguarskx :
-Lower production costs per unit which allows for relatively low price for consumers.
-Increased production efficiency which also indirectly decreases production costs.
-Decreased power consumption.
-Potentially higher clock frequencies due to lower heat as a result of less power consumption.
-Integration of functions to reduce overall system costs. Examples:
---Memory Controller integrated into the CPU.
---Integrated graphic core. Not everyone needs a discrete graphic card, like office PCs.
-Increased production efficiency because more processors can be made from one silicon die. Silicon dies take money and time to be refined and polished for transistors to be drawn onto them. The less dies go through the process, the better.
Think of it as an automobile factory in terms of economics of scale. The more cars the factory produces, the less each car cost to make. A factory producing 10,000 cars in an ideal situation will be more efficient than a factory producing 1,000 cars.
In the semiconductor industry case, it's cheaper per processor to produce 1000 processors from each silicon die than 100 processors.