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An improvement on the Pentium III design is the Pentium M.
The original version, Katmai, was pretty much the same as the Pentium II (using a 0.25µm fabrication process), the only differences being the introduction of SSE, and an improved L1 cache controller (which was the cause of the minor performance improvements over the latter PIIs). It was first released at speeds of 450 and 500 MHz. Two more versions were released: 550 MHz on May 17, 1999 and 600 MHz on August 2, 1999.
The second version, Coppermine, had an integrated 256 KiB L2 cache, which greatly improved performance over Katmai. It was built on a 0.18 m process. Pentium III Coppermines running at 500, 533, 550, 600, 650, 667, 700, and 733 MHz were first released on October 25October 25 is the 298th day of the year (299th in leap years) in the Gregorian Calendar, with 67 days remaining. Events 1415 The army of Henry V of England defeats the French army at the Battle of Agincourt 1662 King Charles II of England sells Dunkirk to, 1999. From December 1999 to May 2000, Intel released Pentium IIIs running at speeds of 750, 800, 850, 866, 933, and 1000 MHz (1GHz).
A 1.13GHz version was released in mid-2000 but recalled after it proved to be so unstable that it was unusable. Ironically, the problem was traced to the integrated cache, which simply could not operate at speeds above 1GHz.
The third version, Tualatin, was really just a trial for Intel's new 0.13 μm process. Had the Pentium 4 been on a sounder footing, it's doubtful whether Tualatin would have ever been made. Tualatin performed quite well, especially in variations which had 512 KiB L2 cache (called the Pentium III-S).
Pentium III Tualatins were released during 2001 until early 2002 at speeds of 1.13, 1.2, 1.26, and 1.4 GHz. Intel didn't want a repeat of the situation where the performance of a lower priced Celeron rivaled that of the more expensive Pentium II, so Tualatin never ran faster than 1.4 GHz, the introductory clock rate of the Pentium 4. Later on, the Pentium M proved that the design was good for at least 1.7GHz on the 0.13 μm process.
The Tualatin core was named after the Tualatin ValleyThe Tualatin Valley is a farming and suburban region southwest of Portland, Oregon in the United States. The valley is formed by the meandering Tualatin River, a tributary of the Willamette River at the northwest corner of the Willamette Valley, east of t and Tualatin RiverThe Tualatin River is a tributary of the Willamette River, approximately 83 mi (125 km), in Oregon in the United States. It drains a fertile farming region called the Tualatin Valley southwest and west of Portland at the northwest corner of the larger Wil in the OregonOregon is a state located in the western United States bordering the Pacific Ocean, California, Washington, Idaho, and Nevada. Its northern border lies along the Columbia River and the east along the Snake River. Two north-south mountain ranges the Coasta area.
| List of Intel microprocessors |
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4004 |
4040 |
8008 |
8080 |
8085 |
8086 |
8088 |
iAPX 432 | 80186 | 80188 | 80286 | 80386 | 80486 | Pentium | Pentium Pro | Pentium II | Celeron | Pentium III | Pentium 4 | Pentium M | Itanium | Itanium 2(note: italics indicates non-main branch µPs) |
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