Internet speeds determine the quality of the footage. However, you can stream live games without buffering with speeds as low as 5 Mbps, which is the average DSL connection. 5 Mbps speed offers a 480p quality video. However, 4G LTE speeds reach about 10 Mbps and enable watching a 720p video. However, for HD quality stream, you need speeds of at least 25 Mbps.