Pentium III

• Katmai - 0.25 µm process technology
o Introduced February 26, 1999
o Improved PII, i.e. P6-based core, now including Streaming SIMD Extensions (SSE)
o Number of transistors 9.5 million
o 512 KB ½ speed L2 External cache
o 242-pin Slot 1 SECC2 (Single Edge Contact cartridge 2) processor package
o System Bus Speed 100 MHz, 133 MHz (B-models)
o Slot 1
o Family 6 model 7
o Variants
 450 MHz Introduced February 26, 1999
 500 MHz Introduced February 26, 1999
 550 MHz Introduced May 17, 1999
 600 MHz Introduced August 2, 1999
 533 MHz Introduced (133 MHz bus speed) September 27, 1999
 600 MHz Introduced (133 MHz bus speed) September 27, 1999
• Coppermine - 0.18 µm process technology
o Introduced October 25, 1999
o Number of transistors 28.1 million
o 256 KB Advanced Transfer L2 Cache (Integrated)
o 242-pin Slot-1 SECC2 (Single Edge Contact cartridge 2) processor package, 370-pin FC-PGA (Flip-chip pin grid array) package
o System Bus Speed 100 MHz (E-models), 133 MHz (EB models)
o Slot 1, Socket 370
o Family 6 model 8
o Variants
 500 MHz (100 MHz bus speed)
 533 MHz
 550 MHz (100 MHz bus speed)
 600 MHz
 600 MHz (100 MHz bus speed)
 650 MHz (100 MHz bus speed) Introduced October 25, 1999
 667 MHz Introduced October 25, 1999
 700 MHz (100 MHz bus speed) Introduced October 25, 1999
 733 MHz Introduced October 25, 1999
 750 MHz (100 MHz bus speed) Introduced December 20, 1999
 800 MHz (100 MHz bus speed) Introduced December 20, 1999
 850 MHz (100 MHz bus speed) Introduced March 20, 2000
 866 MHz Introduced March 20, 2000
 933 MHz Introduced May 24, 2000
 1000 MHz Introduced March 8, 2000 (Not widely available at time of release)
 1100 MHz
 1133 MHz (first version recalled, later re-released)
 400 MHz (Mobile) Introduced October 25, 1999
 450 MHz (Mobile) Introduced October 25, 1999
 500 MHz (Mobile) Introduced October 25, 1999
 600 MHz (Mobile) Introduced January 18, 2000
 650 MHz (Mobile) Introduced January 18, 2000
 700 MHz (Mobile) Introduced April 24, 2000
 750 MHz (Mobile) Introduced June 19, 2000
 800 MHz (Mobile) Introduced September 25, 2000
 850 MHz (Mobile) Introduced September 25, 2000
 900 MHz (Mobile) Introduced March 19, 2001
 1000 MHz (Mobile) Introduced March 19, 2001
• Tualatin - 0.13 µm process technology
o Introduced July 2001
o Number of transistors 28.1 million
o 32 KB L1 cache
o 256 KB or 512 KB Advanced Transfer L2 cache (Integrated)
o 370-pin FC-PGA2 (Flip-chip pin grid array) package
o 133 MHz system bus speed
o Socket 370
o Family 6 model 11
o Variants
 1133 MHz (256 KB L2)
 1133 MHz (512 KB L2)
 1200 MHz
 1266 MHz (512 KB L2)
 1333 MHz
 1400 MHz (512 KB L2)