As with any computer, the CPU is the heart of the Xbox 360. Microsoft has outfitted the 360 with a 165-million transistor, multi-core processor running three 3.2-GHz PowerPC cores.
Each core on the chip functions as a separate processor. Recently, hardware manufacturers have started combining several cores, or processors, onto one chip. This is a multi-core processor. Multi-core processors offer a combination of tremendous computing capabilities and efficient power consumption. They split
heavy work loads over multiple powerful processors rather than giving all the work to one super-powerful processor.
The other interesting thing to note about the Xbox 360 CPU is that each core is capable of processing two threads simultaneously. Think of a thread as a set of instructions for a program's job. The core processes these instructions and does the heavy lifting to get the job done. A conventional processor can run a single execution thread. Because the Xbox 360 cores can each han...