802.11ac from Google Wifi maxes out at around 300 mbps for me (on gigabit internet. for one device). Not sure on your setup, but it does matter how many streams

802.11ac from Google Wifi maxes out at around 300 mbps for me (on gigabit internet. for one device). Not sure on your setup, but it does matter how many streams your Wifi network adaptor has. The advertised speed of your router usually doesn't mean much, as it usually implies the maximum concurrent speed available, rather than how much one device can use.