@Ssnort That's got to be faked I think. By which I mean, he's used DeviceProperties or an SSDT to make his GPU appear as an RX 6800.
I'm almost sure that "Radeon RX 6800 8 Go" is his language's version of "Radeon RX 6800 8 GB" - as the VRAM usually appears at the end. All RX6800 cards have 16GB, so any 8GB card can't be an RX6800.
Secondly, look under his sound devices in Hackintool, where it shows his HDMI Audio controller is "Ellesmere HDMI Audio (RX 470/4..."
I think he's got an RX580 or similar card and has faked it as an RX6800.
PS. Just to re-confirm that there is no RX6800 support in 11.2 beta 1 which released yesterday. There were posts about this in this thread earlier today but they seem to have disappeared.