AMD is expanding its mainstream RDNA 2 graphics card line-up today with another Navi 23-based offering, the new Radeon RX 6600. As its name implies, the Radeon RX 6600 is a close relative to the Radeon RX 6600 XT, which launched just a few weeks back. This card also targets roughly the same audience, i.e. budget conscious 1080p gamers, though...