That's a blanket-statement and ends up being incorrect/inaccurate. The top Vega card is HBM2, not even in the same ballpark as the 1080.

Also, recent Linux patches hint that there will be dual-chip water-cooled Vega boards too which is likely not even 1080 Ti regime: https://www.techpowerup.com/233208/linux-drivers-point-to-up...