The Apple MacBook Pro Early 2015 has an 802.11n wi-Fi standards which is better than most comparable spec portable PCs that have been available for around the same time as it. Most similar spec laptops that are a comparable age to it have an 802.11a wi-Fi standards. This notebook PC also have 802.11ac and 802.11b and 802.11g wi-Fi standardss.
An 802.11n wi-Fi standards is actually the best Wi-Fi standard amongst all similar spec notebook PCs that were launched more than a year ago.
The worst Wi-Fi standard amongst comparable types of notebook PC is 802.11a.