Pentium III
| General information | |
|---|---|
| Launched | February 28, 1999 |
| Discontinued | April 23, 2004 (for desktop units) May 18, 2007 (for mobile units)[1] July 14, 2009 (discontinuation and end of life) |
| Marketed by | Intel |
| Designed by | Intel |
| Common manufacturer |
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| Product code |
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| Performance | |
| Max. CPU clock rate | 400 MHz to 1.4 GHz |
| FSB speeds | 100 MT/s to 133 MT/s |
| Cache | |
| L1 cache | 32 KB (16 KB data + 16 KB instructions) |
| L2 cache | 128–512 KB |
| Architecture and classification | |
| Technology node | 250 nm to 130 nm |
| Microarchitecture | P6 |
| Instruction set | IA-32 |
| Extensions |
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| Physical specifications | |
| Transistors |
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| Cores |
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| Sockets |
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| Products, models, variants | |
| Core names |
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| Variant | |
| History | |
| Predecessor | Pentium II |
| Successor | Pentium 4 |
| Support status | |
| Unsupported | |
The Pentium III[2] (marketed as Intel Pentium III Processor, informally PIII or P3) is the third incarnation of the Pentium, and is a brand of sixth-generation x86 microprocessors based on the P6 microarchitecture initially produced by Intel and officially launched on February 28, 1999. The brand's initial processors were very similar to the earlier Pentium II-branded processors. The most notable differences were the addition of the Streaming SIMD Extensions (SSE) instruction set (to accelerate floating point and parallel calculations), and the introduction of a controversial serial number embedded in the chip during manufacturing.
Even after the release of the Pentium 4 in late 2000, the Pentium III continued to be produced with new models introduced up until early 2003. They were then discontinued in April 2004 for desktop units[3] and May 2007 for mobile units.[1] They were leaving of support and removed from the official price lists in July 2009.
- ^ a b "Product Change Notification #104109-00" (PDF). Intel. May 14, 2004. Archived from the original (PDF) on July 19, 2004. Retrieved October 14, 2019.
- ^ Microprocessor Hall of Fame, Intel Corporation, archived from the original on April 6, 2008, retrieved August 11, 2007
- ^ "Product Change Notification #102839-00" (PDF). Intel. October 14, 2002. Archived from the original (PDF) on March 22, 2003. Retrieved October 14, 2019.