Good news for anyone planning to buy a new Mac this year:  Wi-Fi connectivity in  Apple’s (AAPL) new computers is going to pack some serious speed. The Next Web reports that Apple and Broadcom (BRCM) are teaming up to bring gigabit-speed 802.11ac chips to Apple’s 2013 Mac lineup that will deliver fifth-generation Wi-Fi capabilities. 802.11ac connectivity, otherwise known as “5G Wi-Fi,” is capable of delivering theoretical peak speeds of 1.3Gbps and is a major step forward in the evolution of Wi-Fi. Asus (2357) became the first company to produce a notebook with 802.11ac connectivity last year with its G75VW gaming laptop.