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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) | ||||||
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