Venus: Difference between revisions

From XenonLibrary
Jump to navigation Jump to search
No edit summary
No edit summary
 
(2 intermediate revisions by the same user not shown)
Line 9: Line 9:
| clockspeed  = 500MHz
| clockspeed  = 500MHz
| memory      = 10MB [[eDRAM]]
| memory      = 10MB [[eDRAM]]
| process      = 90nm (GPU die)<br>90nm (eDRAM die)
| process      = 90nm (Both dies)
| package      = Flip-chip BGA1017
| package      = Flip-chip BGA1017
| successor    = [[Rhea]]
| successor    = [[Rhea]]
}}
}}


'''Venus''' is an engineering sample [[GPU]] used to checkout the first version of the 90nm [[Styx]] eDRAM. The GPU die is the same 90nm die as [[Y1 (GPU)|Y1]].
'''Venus''' is an engineering sample [[GPU]] used to checkout the first version of the [[Styx]]-90 eDRAM. The GPU die is the same 90nm die as [[Y1 (GPU)|Y1]].


== Specifications ==
== Specifications ==

Latest revision as of 15:10, 15 May 2024

Venus
X809141-001.jpg
Part NumberX809141
IntroducedEarly 2006
Designed ByATi
Microsoft
NEC (eDRAM)
TypeGPU
Clock Speed500MHz
Memory10MB eDRAM
Process90nm (Both dies)
PackageFlip-chip BGA1017
SuccessorRhea

Venus is an engineering sample GPU used to checkout the first version of the Styx-90 eDRAM. The GPU die is the same 90nm die as Y1.

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
  • A32 stepping
  • 90nm process

eDRAM (Styx-90)

  • 10MB 256GB/s eDRAM
  • Contains logic for:
    • 4-sample anti-aliasing
    • Alpha compositing
    • Color
    • Z/stencil buffering
  • FS11 stepping
  • 90nm process

Details

Venus from another angle

Based on the manufacturing date, it is speculated that this chip was designed in order to test Styx-90 before the Y2 or Y3 GPU dies were available. The GPU die is marked with "GPU Y3/Venus ES", indicating that it is part of the Y3 program. Little else is known about Venus.

  • Part Number: X809141