Though they can be less convenient, Ethernet cables are typically much faster than Wi-Fi. Westend61/Getty Images Ethernet is typically faster than a Wi-Fi connection, and it offers other advantages as well. A hardwired Ethernet cable connection is more secure and stable than Wi-Fi. You can test your computer's speeds on Wi-Fi versus an Ethernet connection easily. Visit Insider's Tech Reference library for more stories. The advent of Wi-Fi was a great thing.