AT&T Fiber is a good choice for gaming because it offers bandwidth up and down of at least 300 Mbps on all plans, meaning that you’ll have no issue streaming from a provider like Stadia or streaming live to a platform like Twitch. The bandwidth on all AT&T Fiber plans is sufficient for 4K definition video over WiFi, and the pure fiber connection produces lower ping measurements relative to cable or DSL. You can expect ping to be 20–30ms lower since the network is newer and will have newer switching equipment at all hops between your home and the server.