Difference between revisions of "CPU"

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The CPU in the Xbox was a custom Pentium III running at 733MHz. The 'custom' part of this was that that the Pentium III in the Xbox was that it had only 128KB L2 cache instead of the usual 256KB. This allowed Microsoft to buy them at a bit of a discount and Intel to shift a few more CPUs{{citation needed}}.
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The CPU in the Xbox was a custom Pentium III running at 733MHz. The 'custom' part of this was that the Pentium III in the Xbox only had a 128KB L2 cache instead of the usual 256KB. This allowed Microsoft to buy them at a bit of a discount and Intel to shift a few more CPUs{{citation needed}}.
  
 
== References ==
 
== References ==
  
* [http://www.intel.com/content/dam/support/us/en/documents/processors/mobile/celeron/sb/28365403.pdf Mobile Intel® Celeron® Processor (0.18μ) in BGA2 and Micro-PGA2 Packages] (This datasheet is for the mobile version Coppermine with 256kB L2 cache. It does not contain the Xbox Coppermine-128 with 128kB L2 cache at 733MHz (S-Spec SL5SN). No such datasheet exists. Both differences are pin compatible.
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* [http://www.intel.com/content/dam/support/us/en/documents/processors/mobile/celeron/sb/28365403.pdf Mobile Intel® Celeron® Processor (0.18μ) in BGA2 and Micro-PGA2 Packages] This datasheet is for the mobile version Coppermine with 256kB L2 cache. It does not contain the Xbox Coppermine-128 with 128kB L2 cache at 733MHz (S-Spec SL5SN). No such datasheet exists. Both differences are pin compatible.
* [https://www.intel.com/content/dam/support/us/en/documents/processors/mobile/celeron/sb/24542154.pdf This specification update should contain the errata for the Xbox CPU]
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* [https://www.intel.com/content/dam/support/us/en/documents/processors/mobile/celeron/sb/24542154.pdf Mobile Intel® Celeron® Processor (0.18μ and 0.13μ) Specification Update] This document should contain the errata for the Xbox CPU.
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* [https://en.wikipedia.org/wiki/List_of_Intel_Pentium_III_microprocessors#"Coppermine"_(180_nm) Wikipedia - List of Intel Pentium III microprocessors: "Coppermine" (180 nm)]
 
* [https://www.google.com/patents/US20050282621 CPU upgrading adapter for a Microsoft XboxTM game machine] US Patent Application 20050282621 by Friendtech, filed 2003-08-21.
 
* [https://www.google.com/patents/US20050282621 CPU upgrading adapter for a Microsoft XboxTM game machine] US Patent Application 20050282621 by Friendtech, filed 2003-08-21.
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Articles from the Intel Technology Journal about the Pentium III architecture:
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* [https://web.archive.org/web/20000815203117/http://developer.intel.com/technology/itj/q21999.htm Intel Technology Journal Q2 1999]
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* [https://web.archive.org/web/20001006215908/http://developer.intel.com/technology/itj/q21999/pdf/simd_ext.pdf The Internet Streaming SIMD Extensions]
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* [https://web.archive.org/web/20031104144423/http://developer.intel.com/technology/itj/q21999/pdf/impliment.pdf Pentium III Processor Implementation Tradeoffs]
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* [https://web.archive.org/web/20001006220034/http://developer.intel.com/technology/itj/q21999/pdf/serial_number.pdf Pentium III Processor Serial Number Feature and Applications]
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* [https://web.archive.org/web/20001006220114/http://developer.intel.com/technology/itj/q21999/pdf/3d_stack.pdf Architecture of a 3D Software Stack for Peak Pentium III Processor Performance]
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* [https://web.archive.org/web/20001006220154/http://developer.intel.com/technology/itj/q21999/pdf/apps_simd.pdf Applications Tuning for Streaming SIMD Extensions]
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* [https://web.archive.org/web/20030331192409/http://developer.intel.com/technology/itj/Q21999/pdf/vtune.pdf Programming Methods for the Pentium® III Processor’s Streaming SIMD Extensions Using the VTune Performance Enhancement Environment]

Latest revision as of 00:37, 2 January 2024

The CPU in the Xbox was a custom Pentium III running at 733MHz. The 'custom' part of this was that the Pentium III in the Xbox only had a 128KB L2 cache instead of the usual 256KB. This allowed Microsoft to buy them at a bit of a discount and Intel to shift a few more CPUs[citation needed].

References

Articles from the Intel Technology Journal about the Pentium III architecture: