IBM Xenon microprocessor.
|Common manufacturer(s)||Chartered Semiconductor Manufacturing
|Instruction set||Power Architecture|
|Cores||3 (physical), 6 (logical)|
|L1 cache||32/32 kB|
|L2 cache||1 MB|
Xenon is a CPU that is used in the Xbox 360 game console. The processor, internally codenamed "Waternoose" by IBM and "XCPU" by Microsoft, is based on IBM's PowerPC instruction set architecture, consisting of three independent processor cores on a single die. These cores are slightly modified versions of the PPE in the Cell processor which was designed specifically for the PlayStation 3. Each core has two symmetric hardware threads (SMT), for a total of six hardware threads available to games. Each individual core also includes 32 KiB of L1 instruction cache and 32 KiB of L1 data cache.
The name "Xenon" was repurposed from the code name for the Xbox 360 in early development.