★ Packet data speed is higher in 3G, and it is up to 384 KBPS

★ Voice and sms speed is also 384 KBPS in 3G

★ 2G utilizes different switching techniques for voice and data, where as 3G uses single switching, irrespective of data

★ 3G has at least 2MB of data link of a mobile, where in 2G the data rate is in KBPS

★ 3G has WiMAX facility for faster VOIP and internet

★ 2G uses GSM TDMA technology with narrow band 200 KHz.

★ 3G uses CD-MA technology with broadband 5 MHz, with same frequency carrier and time.