The vast majority of the book is dedicated to optimizing Pentium-and-earlier processors as well as EGA/VGA programming modes, with a smaller but still significa

The vast majority of the book is dedicated to optimizing Pentium-and-earlier processors as well as EGA/VGA programming modes, with a smaller but still significant chunk on software polygon rasterization. There is value in the bits on BSP and visibility, but it's probably only a third of the last ten (of 70) chapters. That said, there's probably more relevant worth in those bits than any Game Programming Gems books :). Abrash is a great writer and, even if you skip the deep technical dives and code listings, the book is still worth reading.