No, Apple develop good computer hardware, it is others who then tag it as 'gaming grade hardware'. Take the Mac Pro, that thing oozes gaming performance hardware BUT the only reference Apple make to gaming which is under their 'design' heading is the ability of the machine to 'build gaming environments', build, not play. Dell, HP, ASUS, all of them would be praising the gaming performance of a machine like that and they do, all 3 of them pro-actively promote and market their gaming laptops and desktops but not Apple. They have the machine to do it but they do not market it or promote it as a machine capable of playing games. The only ones that do are 3rd parties.Just a quick remark on this. Apple does spend considerable amount of effort and money to develop gaming grade hardware. And they do promote gaming during their consumer oriented events.
It is the same with monitors. All 3 of those companies i've mentioned actively promote some of their monitors as good for gaming but again not Apple.
I remember once reading an interview with Sir Clive Sinclair, the inventor of the sinclair range of computers about why he initially designed his computer and he said it was so children could learn about the wonders of programming and computers but what was his computers mainly used for? yep, gaming. Wozniak didn't design the Apple computer to be a gaming machine, he built it to be an educational device and Jobs being the man he was, saw the potential of the machine as an educational tool. He never promoted Apple computers as gaming devices/tools and Apple has stuck to that principle.