The Asus G751JT has a better Wi-Fi standard than most similar spec notebook PCs that were launched around the same time as it. This Asus notebook PC has an 802.11n WiFi standard, whereas most gaming laptops that were released around the same time as it have an 802.11a WiFi standard. This portable PC also have 802.11ac and 802.11b and 802.11g WiFi standards.
An 802.11n WiFi standard is actually the best Wi-Fi standard across all notebook PCs of this age and spec.
An 802.11a WiFi standard is the worst Wi-Fi standard amongst similar types of notebook PC.