Kronos: Difference between revisions

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{{Infobox Chip
{{Infobox Chip
| name        = Kronos
| name        = Kronos
| image        = X820864-001.jpg
| image        = X820894-001.jpg
| image_size  = 150px
| image_size  = 150px
| partnumber  = X820864
| partnumber  = X820894
| introduced  = Late 2009
| introduced  = Late 2009
| designedby  = ATi<br>Microsoft<br>NEC (eDRAM)
| designedby  = Microsoft
| codename    = C23
| codename    = Y3
| type        = [[GPU]]
| type        = [[GPU]]
| usedin      = [[Jasper]] (Only in July 2009)<br>[[Jasper#Tonasket|Jasper Tonasket]]
| usedin      = [[Jasper]] (Only in July 2009)<br>[[Tonasket|Tonasket]]
| clockspeed  = 500MHz
| clockspeed  = 500MHz
| memory      = 10MB [[eDRAM]]
| memory      = 10MB [[eDRAM]]
| process      = 65nm (Both dies)
| process      = 65nm (Both dies)
| package      = Flip-chip BGA1017
| package      = Flip-chip BGA1017
| predecessor  = [[Zeus (GPU)|Zeus]]
| predecessor  = [[Zeus]]
| successor    = [[Valhalla (CGPU)|Valhalla]]
| successor    = [[Vejle]]
}}
}}


'''Kronos''' is a 65nm [[GPU]] used in the [[Xbox 360]]. It is the successor to [[Zeus (GPU)|Zeus]] and has the '''C23''' design. No significant changes were made to the GPU. The eDRAM process was shrunk to 65nm. Kronos has proven to be the most reliable 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]]
* 65nm process
* 65nm process


=== eDRAM ===
=== eDRAM (Styx-65) ===
{{EDRAM Specs}}
{{EDRAM Specs}}
* GS21 [[stepping]]
* 65nm process
* 65nm process


== Details ==
== 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|Zeus C12 ES]]. Marked as C12P.
[[File:X815158-001.jpg|150px]]


* Part Number: X820894
* Part Number: X815158-001
* Foundries:
 
** {{Foundry|f=korea}}
=== C21 ===
** {{Foundry|f=taiwan}}
Major update. Kronos version of [[Zeus#C21|Zeus C21 ES]].
 
* Part Number: Unknown
 
=== C22 ===
Minor update. Kronos version of [[Zeus#C22|Zeus C22 ES]].
 
[[File:X817816-001.jpg|150px]]
[[File:X818004-001.jpg|150px]]
 
* Part Numbers:
** X817816-001
** X818004-001
 
=== C23 ===
Minor update. Kronos version of [[Zeus#C23|Zeus C23 ES]].


{{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.