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Intel Pentium III identification


Pentium III (CPU markings) | Mobile Pentium III and Celeron processors | 80486 | Pentium | Pentium II | Modern Intel CPUs | Other Intel chips

To identify Pentium III OEM part numbers please see the page Identification of modern Intel microprocessors.

  Pentium III (CPU markings) identification  
Related links: Pentium III
1 2 3   4   5   6   7  
600 E B / 256 / 100 / 2.0V S1  
         
7. Package type
Blank    FC-PGA or FC-PGA2
S1   Slot 1 cartridge
 
  6. Operating voltage (V)
 
        5. Bus frequency
100   100 MHz
133   133 MHz
 
            4. Size of L2 cache (KB)
256   256 KB
512   512 KB
 
                3. Bus frequency identifier
This letter is used to distinguish between processors running at the same frequency but having different bus speeds.
Blank   Processor may have 100 or 133 MHz bus speed. See "Bus Frequency" parameter for exact value.
B   133 MHz bus speed.
 
                  2. Cache implementation
Blank   Standard Pentium III Level 2 cache
E   Advanced transfer cache
 
  1. Frequency (MHz)

  Mobile Pentium III and Celeron processors identification  
Related links: Celeron | Pentium III Mobile module
  1 2 3 4 5  
PM M 500 02 101 AB  
   
5. Processor revision
ES    Engineering sample
QS   Qualification sample
Other letters   Processor revision (starts from AA)
 
  4. Design revision (starts from 001)
 
    3. Cache size
01   128 KB
02   256 KB
 
      2. Frequency
450   450 MHz
500   500 MHz
550   550 MHz
600   600 MHz
650   650 MHz
700   700 MHz
750   750 MHz
800   800 MHZ
850   850 MHz
 
        1. Module type
L   Pentium III processor mobile module (MMC-2)
M   Pentium III processor mobile module (MMC-2) with SpeedStep technology
N   Celeron (0.18 micron ) mobile module (MMC-2)

Last modified: 3 Aug 2008
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