A:AnswerIn essence, 802.11ac Wi-Fi is a supercharged version of the older 802.11n. The 802.11ac is dozens of times faster, and delivers speeds blazing speed up to several gigabits per second. Simply put..... This a huge difference that allows 802.11ac to squeeze vast amounts of data across the airwaves.... almost as good as having your unit hooked directly by wire instead of wireless.