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(Created page with "{{Infobox Chip | name = Xenos | image = X02056.jpg | image_size = 150px | caption = The original Xenos, Y1 | introduced = 2005 | designedby = ATi<br>Microsoft<br>NEC (eDRAM) | codename = ATi C1 | type = GPU | usedin = Original Xbox 360 | clockspeed = 500MHz | memory = 10MB eDRAM (GPU) | successor = XCGPU }} '''Xenos''', codenamed '''C1''', is the graphics processor, northbridge, and memory c...")
 
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'''Xenos''', codenamed '''C1''', is the graphics processor, northbridge, and memory controller used in the [[Xbox 360]] game console. It also features an NEC designed 10MB eDRAM which also contains additional logic (such as anti-aliasing).
'''Xenos''', codenamed '''C1''', is the graphics processor, northbridge, and memory controller used in the [[Xbox 360]] game console. It also has an NEC designed eDRAM which contains additional logic.


The processor was developed by Microsoft and ATi, and the first version was codenamed [[Y1 (GPU)|Y1]], which stands for Year 1.
The processor was developed by Microsoft and ATi, and the first version was codenamed [[Y1 (GPU)|Y1]], which stands for Year 1.

Revision as of 13:38, 22 December 2022

Xenos
File:X02056.jpg
The original Xenos, Y1
Introduced2005
Designed ByATi
Microsoft
NEC (eDRAM)
CodenameATi C1
TypeGPU
Used InOriginal Xbox 360
Clock Speed500MHz
Memory10MB eDRAM (GPU)
SuccessorXCGPU

Xenos, codenamed C1, is the graphics processor, northbridge, and memory controller used in the Xbox 360 game console. It also has an NEC designed eDRAM which contains additional logic.

The processor was developed by Microsoft and ATi, and the first version was codenamed Y1, which stands for Year 1.

Specifications

GPU

  • 500Mhz clock speed
  • 48 floating-point vector processors divided into 3 dynamically scheduled SIMD groups (16 each)
  • Unified shader architecture
  • 16 texture addressing units
  • 16 texture filtering units
  • 8 pixel rendering pipelines
  • Direct access to CPU L2 cache

eDRAM

  • 10MB 256GB/s eDRAM
  • Contains logic for:
    • 4-sample anti-aliasing
    • Alpha compositing
    • Color
    • Z/stencil buffering

Versions

There are multiple versions of the Xenos, used on different motherboard types