Difference between revisions of "CPU"

From xboxdevwiki
Jump to: navigation, search
(Added Wikipedia link)
Line 5: Line 5:
 
* [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.
 
* [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 Mobile Intel® Celeron® Processor (0.18μ and 0.13μ) Specification Update] This document should contain the errata for the Xbox CPU.
 
* [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.
 +
* Wikipedia - List of Intel Pentium III microprocessors - [https://en.wikipedia.org/wiki/List_of_Intel_Pentium_III_microprocessors#"Coppermine-128"_(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.

Revision as of 06:38, 9 August 2019

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