Both latency and bandwidth affect gaming. Latency is important to ensure that there isn't too much lag between you moving a controller stick and your character

Both latency and bandwidth affect gaming. Latency is important to ensure that there isn't too much lag between you moving a controller stick and your character moving, and not as important for slower games which can handle this well. Bandwidth is important because it determines the resolution and quality you can stream at, so higher bandwidths would enable full HD or 4K gaming.