The EliteBook 725 has an 802.11n WiFi standard which is better than most notebook PCs of this age and spec. Most similar spec laptops that were released more than two years ago have an 802.11b WiFi standard. This portable PC also have an 802.11a and 802.11g WiFi standard.
An 802.11n WiFi standard is in fact the best Wi-Fi standard amongst all portable PCs that were launched around the same time as the EliteBook 725.
The worst Wi-Fi standard amongst comparable types of notebook PC is 802.11a.