Vega has half-precision floats as well though, which (with a seemingly negligible loss in precision) in combination with their HBCC (transparent main memory DMA

Vega has half-precision floats as well though, which (with a seemingly negligible loss in precision) in combination with their HBCC (transparent main memory DMA) should more than make up for the lack of memory on the Vega 64, and in the case of Frontier Edition, all the more so.