https://wccftech.com/asrock-radeon-rx-6800-xt-sub-zero-graphics-card-pictured-binned-big-navi-gpu/

ASRock is working to launch a new line of reference Radeon RX 6800 series graphics cards including the Radeon RX 6800 XT know as Sub Zero. The lineup is essentially based on the reference design & will make use of better Big Navi chips that would allow for higher overclocking & much faster clock speeds out of the box.

From what we learned through our sources, the ASRock Radeon RX 6800 Sub Zero series will get both RX 6800 XT & RX 6800 variants. There aren't any physical changes over the reference design but we do get to see some visual differences in the choice of colors that ASRock has selected for its new lineup. Gone is the black and silver color scheme and the card will instead feature a full glossy silver design which looks quite nice. The backplate seems to be silver colored too from what we've been told.