Kronos

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Kronos
X820894-001.jpg
Part NumberX820894
IntroducedLate 2009
Designed ByATi
Microsoft
NEC (eDRAM)
CodenameGunga
TypeGPU
Used InJasper (Only in July 2009)
Tonasket
Clock Speed500MHz
Memory10MB eDRAM
Process65nm (Both dies)
PackageFlip-chip BGA1017
PredecessorZeus
SuccessorValhalla

Kronos is a 65nm GPU and is used on the Tonasket motherboard. It is also used on July 2009 versions of the Jasper motherboard. No significant changes were made. The eDRAM process was shrunk to 65nm. Kronos has proven to be the most reliable version of Xenos.

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
  • C23 stepping
  • 65nm process

eDRAM

  • 10MB 256GB/s eDRAM
  • Contains logic for:
    • 4-sample anti-aliasing
    • Alpha compositing
    • Color
    • Z/stencil buffering
  • GS21 stepping
  • 65nm process

Details

Kronos uses the Styx eDRAM.

  • Part Number: X820894