The MacBook Pro Mid 2012 has an 802.11a WiFi standard which is better than most laptops of a similar age and type to it. Most notebook PCs that were released around the same time as it have an 802.11n WiFi standard. In addition, this notebook PC have an 802.11b and 802.11g WiFi standard.
This laptop's Wi-Fi standard (802.11a) is in fact the worst Wi-Fi standard amongst all portable PCs of this age and type.
Amongst similar types of laptop the best Wi-Fi standard is 802.11n.