Unreleased ASUS RX 5700 XT prototype surfaces, possibly a ROG Matrix model

VideoCardz reports that an unreleased ASUS RX 5700 XT shown by Chinese hardware creators may be a canceled ROG Matrix model; ASUS has not confirmed its identity. The prototype reportedly has seven heatpipes and more power-delivery phases than the retail ROG Strix. Wccftech says an uploaded BIOS indicates it could hit 2,100 MHz with a 280W power limit.