To understand console design, one must understand the unique constraints placed on the engineers. A desktop PC can rely on brute-force power, modular upgrades, and massive cooling systems. A console designer, however, must build a system that fits in a living room entertainment center, costs less than $500 to manufacture, and must remain competitive for a 7-to-10-year lifecycle. The Unified Memory Architecture (UMA)
If you are determined to find without breaking the law or your computer, follow this procedure: the black art of video game console design pdf download