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This standard extends the capabilities of 802.11ac in a few key ways. 802.11ax, also known as WiFi 6, came to the industry in 2019.It is sometimes called 5G because of its frequency band, sometimes Gigabit WiFi because of its potential to exceed a gigabit per second on multiple streams and sometimes Very High Throughput (VHT) for the same reason. Like 802.11n, it allows for transmission on multiple spatial streams - up to eight, optionally. It is less prone to interference and far faster than its predecessors, pushing a maximum of 450 megabits per second on a single stream, although real-world speeds may be lower. 802.11ac is backward compatible with 802.11n (and therefore the others, too), with n on the 2.4 GHz band and ac on the 5 GHz band. 802.11ac came on the scene around 2014, and operates exclusively at a 5 GHz frequency.802.11n can transmit up to four streams of data, each at a maximum of 150 megabits per second, but most routers only allow for two or three streams. 802.11n, however, reportedly can achieve speeds as high as 140 megabits per second.

For instance, although 802.11g theoretically moves 54 megabits of data per second, it only achieves real-world speeds of about 24 megabits of data per second because of network congestion. It significantly improved speed and range over its predecessors.

802.11g transmits at 2.4 GHz like 802.11b, but it's a lot faster - it can handle up to 54 megabits of data per second.It uses orthogonal frequency-division multiplexing (OFDM), a more efficient coding technique that splits that radio signal into several sub-signals before they reach a receiver. 802.11a (introduced after 802.11b) transmits at 5 GHz and can move up to 54 megabits of data per second.It can handle up to 11 megabits of data per second, and it uses complementary code keying (CCK) modulation to improve speeds. 802.11b transmits in the 2.4 GHz frequency band of the radio spectrum. For a while, its cost made it popular, but now it's less common as faster standards become less expensive. 802.11b (introduced in 1999) is the slowest and least expensive standard.