Вики сейчас уже как энциклопедия быстрой информации как у меня быстрые записки.
https://en.wikipedia.org/wiki/Wi-Fi
Wi-Fi generations Generation/IEEE Standard Maximum Linkrate Adopted Frequency
Wi‑Fi 6 (802.11ax)
600–9608 Mbit/s 2019 2.4/5 GHz
1–6 GHz ISM
Wi‑Fi 5 (802.11ac)
433–6933 Mbit/s 2014 5 GHz
Wi‑Fi 4 (802.11n)
72–600 Mbit/s 2009 2.4/5 GHz
Wi‑Fi 3 (802.11g)
3–54 Mbit/s 2003 2.4 GHz
Wi‑Fi 2 (802.11a)
1.5 to 54 Mbit/s 1999 5 GHz
Wi‑Fi 1 (802.11b)
1 to 11 Mbit/s 1999 2.4 GHz
(Wi-Fi 1, Wi-Fi 2, Wi-Fi 3 are unbranded but have unofficial assignments)
https://en.wikipedia.org/wiki/Wi-Fi
Wi-Fi generations Generation/IEEE Standard Maximum Linkrate Adopted Frequency
Wi‑Fi 6 (802.11ax)
600–9608 Mbit/s 2019 2.4/5 GHz
1–6 GHz ISM
Wi‑Fi 5 (802.11ac)
433–6933 Mbit/s 2014 5 GHz
Wi‑Fi 4 (802.11n)
72–600 Mbit/s 2009 2.4/5 GHz
Wi‑Fi 3 (802.11g)
3–54 Mbit/s 2003 2.4 GHz
Wi‑Fi 2 (802.11a)
1.5 to 54 Mbit/s 1999 5 GHz
Wi‑Fi 1 (802.11b)
1 to 11 Mbit/s 1999 2.4 GHz
(Wi-Fi 1, Wi-Fi 2, Wi-Fi 3 are unbranded but have unofficial assignments)