0Wireless WiFi 802.11 ABGN LogoWiFi switches from letters to numbers

With the news that WiFi will get a new ver­sion next year, and that it will be called WiFi 6, I thought I’d knock up a little guide to the pre­vi­ous ver­sions of WiFi that we’ve had

Stand­ardNameMax SpeedFre­quencyYearNotes
802.11bWi-Fi 111 Mbps2.4GHz1999
802.11aWi-Fi 254 Mbps5GHz1999
802.11gWi-Fi 354 Mbps2.4GHz2003
802.11nWi-Fi 4600 Mbps (150 Mbps per stream)2.4GHz or 5GHz2009Use of MIMO and mul­tiple anten­nas up to 4 streams
802.11acWi-Fi 5600 Mbps (2.4GHz) + 2,167Mbps (5GHz)2.4GHz and 5GHz2013Intorduced MU-MIMO. Up to 8 MIMO streams, wider chan­nels, and 256QAM mod­u­la­tion. Typ­ic­al speeds of around 500 Mbps — 1 Gbps
802.11axWi-Fi 6~11 Gbps2.4GHz and 5GHz2019Uses 1024QAM and OFDMA. Uses lots of tweaks to increase effi­ciency of spec­trum usage, res­ult­ing in much high­er real world data rates

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