Leto: Difference between revisions

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== Specifications ==
== Specifications ==
=== GPU ===
=== GPU (Gunga) ===
{{GPU Specs}}
{{GPU Specs}}
* C22 [[stepping]]
* C22 [[stepping]]
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== Details ==
== Details ==
Little is known about Leto.
Leto uses the [[Gunga]] [[GPU]] and [[Styx-90]] [[eDRAM]]. Little is known about Leto.


* Part Number: X817092
* Part Number: X817092

Latest revision as of 23:31, 23 August 2024

Leto
X817092-001.jpg
Part NumberX817092
IntroducedEarly 2008
Designed ByMicrosoft
TypeGPU
Clock Speed500MHz
Memory10MB eDRAM
Process65nm (GPU die)
90nm (eDRAM die)
PackageFlip-chip BGA1017

Leto is an engineering sample GPU. It appears to be the same as Zeus, so it's purpose is not known.

Specifications

GPU (Gunga)

  • 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
  • C22 stepping
  • 65nm process

eDRAM (Styx-90)

  • 10MB 256GB/s eDRAM
  • Contains logic for:
    • 4-sample anti-aliasing
    • Alpha compositing
    • Color
    • Z/stencil buffering
  • FS21 stepping
  • 90nm process

Details

Leto uses the Gunga GPU and Styx-90 eDRAM. Little is known about Leto.

  • Part Number: X817092