Ping, also called latency, is a specific measure that primarily has an impact on online gaming, as well as a few other activities. Ping is the amount of time it takes for your network to transfer information from your computer to a remote server and back. There will always be some amount of latency over your network, but the lower this number, the better your performance will be. Typically, you want to keep a close eye on ping for online gaming, as high latency can result in a noticeable delay between your actions in the game and the actions of the other players.
Learn what else to consider for online gaming.