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
| 1 |
2 |
3 |
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4 |
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5 |
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6 |
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7 |
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| 600 |
E |
B |
/ |
256 |
/ |
100 |
/ |
2.0V |
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S1 |
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| 7. Package type |
| Blank |
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FC-PGA or FC-PGA2 |
| S1 |
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Slot 1 cartridge |
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6. Operating voltage (V) |
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5. Bus frequency |
| 100 |
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100 MHz |
| 133 |
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133 MHz |
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4. Size of L2 cache (KB) |
| 256 |
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256 KB |
| 512 |
|
512 KB |
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3. Bus frequency identifier |
| This letter is used to distinguish between processors running at the same frequency but having different bus speeds. |
| Blank |
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Processor may have 100 or 133 MHz bus speed. See "Bus Frequency" parameter for exact value. |
| B |
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133 MHz bus speed. |
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2. Cache implementation |
| Blank |
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Standard Pentium III Level 2 cache |
| E |
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Advanced transfer cache |
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| |
1. Frequency (MHz) |
Mobile Pentium III and Celeron processors identification
| |
1 |
2 |
3 |
4 |
5 |
|
| PM |
M |
500 |
02 |
101 |
AB |
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| 5. Processor revision |
| ES |
|
Engineering sample |
| QS |
|
Qualification sample |
| Other letters |
|
Processor revision (starts from AA) |
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4. Design revision (starts from 001) |
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| |
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3. Cache size |
| 01 |
|
128 KB |
| 02 |
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256 KB |
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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 |
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1. Module type |
| L |
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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) |