nVidia is not "dominating" AMD. In fact, at the low end (where most of the volume is), nVidia has few if any options. At the upper end, performance is so great that the differences really don't amount to much, except perhaps in those one or two titles that are a dealmaker/breaker issue for an infinitesimal number of gamers. That said, afaik Crossfire is still broken, so if a multi-card configuration is on the table, that should be nVidia. For certain features, I'd probably prefer to run nVidia cards myself for games, but because I was bitmining, AMD was the only viable choice. I have absolutely no performance-related reasons to feel compelled to switch to nVidia.