The Apple MacBook Pro Early 2013 Retina has a better Wi-Fi standard than most MacBooks that have been around for around the same time as it. This portable PC has an 802.11a WiFi standard, whereas most portable PCs that have been available for a similar time to it have an 802.11n WiFi standard. This notebook PC also have 802.11ac and 802.11b and 802.11g WiFi standards.
This portable PC's Wi-Fi standard (802.11a) is actually the worst Wi-Fi standard across all portable PCs of this spec and age.
Across similar types of portable PC the best Wi-Fi standard is 802.11n.