This kind of discussion(Mac vs PC) here seems kind of ironic, because uttermost of the games are designed-modeled on a Mac (Pro), I would bet that (bits of) San Andreas also.
Not everybody buys a computer just to run COD XIV on the maximum settings.
I'd like to add a suitably large [citation needed], but there's not enough room on this page.
Also, Mac vs. PC is probably the one extremely pointless, hackneyed discussion we haven't had here as of yet, so why start it now?