A4 chip drives AppleTV, iPod Touch
The previous AppleTV was effectively a PC using an Intel PentiumM-class processor and two supporting chips, an Intel memory controller with embedded graphics and an I/O chip.
The three chips cost $60-65, took up 975mm2 of packaged area and 242mm2 of silicon area, according to Jeff Brown, vice president of business intelligence at UBM TechInsights, a division of United Business Media, the publisher of EE Times. By contrast the A4 replaces all three chips with one device that is estimated to cost Apple $15-20, takes up 196mm2 of packaged space and 53mm2 of silicon area.
