Is there any place that I find technical optimization details regarding porting graphical intensive games (such as DOOM/Quake) to a platform that is significantly less powerful than their intended ones?
Of course, for many of the "it runs Doom" the reality is that whatever the device is (fridge, toaster, printer) it has a much MORE powerful computer than a 1990s 386.
He has a "[Game Engine] Black Book" series where he touches old games, its full development history and so on. The Doom one is pretty good.