Amazon has sold millions of set-top boxes, such as the Roku and Google Chromecast, but now the company is stepping into the arena itself with the Amazon Fire TV. The device is thinner than a dime yet boasts three times the performance of Apple TV. The Fire TV sports a quad-core processor with a dedicated GPU, 2GB of RAM (2X to 4X more than competing devices) and state-of-the-art MIMO Wi-Fi for screaming wireless performance.