Kronos: Difference between revisions

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| partnumber  = X820894
| partnumber  = X820894
| introduced  = Late 2009
| introduced  = Late 2009
| designedby  = ATi<br>Microsoft<br>NEC (eDRAM)
| designedby  = Microsoft
| codename    = Gunga
| codename    = Y3
| type        = [[GPU]]
| type        = [[GPU]]
| usedin      = [[Jasper]] (Only in July 2009)<br>[[Tonasket|Tonasket]]
| usedin      = [[Jasper]] (Only in July 2009)<br>[[Tonasket|Tonasket]]
Line 14: Line 14:
| package      = Flip-chip BGA1017
| package      = Flip-chip BGA1017
| predecessor  = [[Zeus]]
| predecessor  = [[Zeus]]
| successor    = [[Valhalla]]
| successor    = [[Vejle]]
}}
}}


'''Kronos''' is a 65nm [[GPU]] and is used on the [[Tonasket]] motherboard and [[Jasper]] motherboards built in July 2009. It is also used on July 2009 versions of the [[Jasper]] motherboard. No significant changes were made. The [[eDRAM]] was changed to [[Styx]]-65. Kronos has proven to be the most reliable version of the [[GPU]].
'''Kronos''' is a 65nm [[GPU]] and is used on the [[Tonasket]] motherboard and [[Jasper]] motherboards built in July 2009. No significant changes were made. The [[eDRAM]] was changed to [[Styx-65]]. Kronos has proven to be the most reliable version of the [[GPU]].


== Specifications ==
== Specifications ==
=== GPU ===
=== GPU (Gunga) ===
{{GPU Specs}}
{{GPU Specs}}
* C23 [[stepping]]
* C23 [[stepping]]
Line 31: Line 31:


== Details ==
== Details ==
Kronos uses the [[Styx]] [[eDRAM]].
Kronos uses the [[Gunga]] [[GPU]] and [[Styx-65]] [[eDRAM]].


* Part Number: X820894
* Part Number: X820894
Line 39: Line 39:


=== C12 ===
=== C12 ===
First version. Kronos version of [[Zeus#C12|Zeus C12 ES]]. Some versions marked C12P.
First version. Kronos version of [[Zeus#C12|Zeus C12 ES]]. Marked as C12P.


[[File:X815158-001.jpg|150px]]
[[File:X815158-001.jpg|150px]]
Line 48: Line 48:
Major update. Kronos version of [[Zeus#C21|Zeus C21 ES]].
Major update. Kronos version of [[Zeus#C21|Zeus C21 ES]].


* Part Number: TBD
* Part Number: Unknown


=== C22 ===
=== C22 ===
Minor update. Kronos version of [[Zeus#C21|Zeus C22 ES]].
Minor update. Kronos version of [[Zeus#C22|Zeus C22 ES]].


[[File:X817816-001.jpg|150px]]
[[File:X817816-001.jpg|150px]]
[[File:X818004-001.jpg|150px]]


* Part Number: X817816-001
* Part Numbers:
** X817816-001
** X818004-001


=== C23 ===
=== C23 ===
Minor update. Engineering sample for the final C23 production chip.
Minor update. Kronos version of [[Zeus#C23|Zeus C23 ES]].
 
* Part Number: Unknown


{{Motherboard Components}}
{{Motherboard Components}}
[[Category:Motherboard Components]]
[[Category:Motherboard Components]]

Latest revision as of 01:54, 9 November 2024

Kronos
X820894-001.jpg
Part NumberX820894
IntroducedLate 2009
Designed ByMicrosoft
CodenameY3
TypeGPU
Used InJasper (Only in July 2009)
Tonasket
Clock Speed500MHz
Memory10MB eDRAM
Process65nm (Both dies)
PackageFlip-chip BGA1017
PredecessorZeus
SuccessorVejle

Kronos is a 65nm GPU and is used on the Tonasket motherboard and Jasper motherboards built in July 2009. No significant changes were made. The eDRAM was changed to Styx-65. Kronos has proven to be the most reliable version of the GPU.

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
  • C23 stepping
  • 65nm process

eDRAM (Styx-65)

  • 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 Gunga GPU and Styx-65 eDRAM.

  • Part Number: X820894

Prototypes

Engineering Samples by stepping.

C12

First version. Kronos version of Zeus C12 ES. Marked as C12P.

X815158-001.jpg

  • Part Number: X815158-001

C21

Major update. Kronos version of Zeus C21 ES.

  • Part Number: Unknown

C22

Minor update. Kronos version of Zeus C22 ES.

X817816-001.jpg X818004-001.jpg

  • Part Numbers:
    • X817816-001
    • X818004-001

C23

Minor update. Kronos version of Zeus C23 ES.