The Apple MacBook Pro Mid 2014 Retina has an 802.11a WiFi standard which is better than most portable PCs of this age and spec. Most MacBooks that were released around the same time as it have an 802.11n WiFi standard. This portable PC also have an 802.11b and 802.11g WiFi standard.
This laptop's Wi-Fi standard (802.11a) is actually the worst Wi-Fi standard across all portable PCs of a comparable spec and age to the MacBook Pro Mid 2014 Retina.
The best Wi-Fi standard amongst similar types of laptop is 802.11n.