List of Intel microprocessors

• 4004
  • Introduced November 15, 1971
  • Clock speed 108 kHz
  • 0.06 MIPS
  • Bus Width 4 bits (multiplexed address/data due to limited pins)
  • PMOS
  • Number of Transistors 2,300 at 10 μm
  • Addressable Memory 640 bytes
  • Program Memory 4K bytes
  • World's first microprocessor
  • Used in Busicom calculator
  • Trivia: The original goal was to equal the clock speed of the IBM 1620; this was not quite met.
• 4040
  • Introduced TBD, 1974
  • Clock speed of 500 kHz to 740 kHz using 4 to 5.185 MHz crystals
  • 0.06 MIPS
  • Bus Width 4 bits (multiplexed address/data due to limited pins)
  • PMOS
  • Number of Transistors 3,000 at 10 μm
  • Addressable Memory 640 bytes
  • Program Memory 8K bytes
  • Interrupts
  • Enhanced version of 4004
• 8008
  • Introduced April 1, 1972
  • Clock speed 500 kHz (8008-1: 800 kHz)
  • 0.05 MIPS
  • Bus Width 8 bits (multiplexed address/data due to limited pins)
  • PMOS
  • Number of Transistors 3,500 at 10 μm
  • Addressable memory 16 kilobytes
  • Typical in dumb terminals, general calculators, bottling machines
  • Developed in tandem with 4004
  • Originally intended for use in the Datapoint 2200
• 8080
  • Introduced April 1, 1974
  • Clock speed 2MHz
  • 0.64 MIPS
  • Bus Width 8 bits data, 16 bits address
  • NMOS
  • Number of Transistors 6,000 at 6 μm
  • Addressable memory 64 kilobytes
  • 10X the performance of the 8008
  • Used in the Altair 8800, Traffic light controller, cruise missile
  • Required six support chips versus 20 for the 8008
• 8085
  • Introduced March 1976
  • Clock speed 5MHz
  • 0.37 MIPS
  • Bus Width 8 bits data, 16 bits address
  • Number of Transistors 6,500 at 3 μm
  • Used in Toledo scale
  • High level of integration, operating for the first time on a single 5 volt power supply, from 12 volts previously
• 8086
  • Introduced June 8, 1978
  • Clock speeds:
    • 5MHz with 0.33 MIPS
    • 8MHz with 0.66MIPS
    • 10MHz with 0.75 MIPS
  • Bus Width 16 bits data, 20 bits address
  • Number of Transistors 29,000 at 3 μm
  • Addressable memory 1 megabyte
  • 10X the performance of 8080
  • Used in portable computing
  • Instruction set backwards compatible to 8080
  • Used segment registers to access more than 64K of data at once, bane of programmers' existence for years to come
• 8088
  • Introduced June 1, 1979
  • Clock speeds:
    • 5MHz with 0.33 MIPS
    • 8MHz with 0.75 MIPS
  • Internal architecture 16 bits
  • External bus Width 8 bits data, 20 bits address
  • Number of Transistors 29,000 at 3 μm
  • Addressable memory 1 megabyte
  • Identical to 8086 except for its 8 bit external bus
  • Used in IBM PCs and PC clones
• 80186
  • Introduced 1982
  • Used mostly in embedded applications - controllers, point-of-sale systems, terminals, and the like
  • Included two timers, a DMA controller, and an interrupt controller on the chip in addition to the processor
  • Later renamed the iAPX 186
• 80188
  • Same as 80186 except with 8 bit external data bus
• 80286
  • Introduced February 1, 1982
  • Clock speeds:
    • 6MHz with 0.9 MIPS
    • 8MHz, 10MHz with 1.5 MIPS
    • 12.5MHz with 2.66 MIPS
  • Bus Width 16 bits
  • Included memory protection hardware to support multitasking operating systems with per-process address space
  • Number of Transistors 134,000 at 1.5 μm
  • Addressable memory 16 megabytes
  • Added protected-mode features to 8086 with essentially the same instruction set
  • 3-6X the performance of the 8086
  • Widely used in PC clones at the time
  • Can scan the Encyclopædia Britannica in 45 seconds
• 80386DX
  • Introduced October 17, 1985
  • Clock speeds:
    • 16MHz with 5 to 6 MIPS
    • 2/16/1987 20MHz with 6 to 7 MIPS
    • 4/4/1988 25MHz with 8.5 MIPS
    • 4/10/1989 33MHz with 11.4 MIPS (9.4 SPECint92 on Compaq/i 16K L2)
  • Bus Width 32 bits
  • Number of Transistors 275,000 at 1 μm
  • Addressable memory 4 gigabytes
  • Virtual memory 64 terabytes
  • First x86 chip to handle 32-bit data sets
  • Reworked and expanded memory protection support including paged virtual memory and virtual-86 mode, features required by Windows 95 and OS/2 Warp
  • Used in Desktop computing
  • Can address enough memory to manage an eight-page history of every person on earth
  • Can scan the Encyclopædia Britannica in 12.5 seconds
• 80386SX
  • Introduced June 16, 1988
  • Clock speeds:
    • 16MHz with 2.5 MIPS
    • 1/25/1989 20MHz with 2.5 MIPS, 25MHz with 2.7 MIPS
    • 10/26/1992 33MHz with 2.9 MIPS
  • Internal architecture 32 bits
  • External bus width 16 bits
  • Number of Transitors 275,000 at 1 μm
  • Addressable memory 16 megabytes
  • Virtual memory 256 gigabytes
  • 16-bit address bus enable low cost 32-bit processing
  • Built in multitasking
  • Used in entry-level desktop and portable computing
• 80486DX
  • Introduced April 10, 1989
  • Clock speeds:
    • 25MHz with 20 MIPS (16.8 SPECint92, 7.40 SPECfp92)
    • 5/7/1990 33MHz with 27 MIPS (22.4 SPECint92 on Micronics M4P 128k L2)
    • 6/24/1991 50MHz with 41 MIPS (33.4 SPECint92, 14.5 SPECfp92 on Compaq/50L 256K L2)
  • Bus Width 32 bits
  • Number of Transistors 1.2 million at 1 μm; the 50MHz was at 0.8 μm
  • Addressable memory 4 gigabytes
  • Virtual memory 64 terabytes
  • Level 1 cache on chip
  • 50X performance of the 8088
  • Used in Desktop computing and servers
• 80386SL
  • Introduced October 15, 1990
  • Clock speeds:
    • 20MHz with 4.21 MIPS
    • 9/30/1991 25MHz with 5.3 MIPS
  • Internal architecture 32 bits
  • External bus width 16 bits
  • Number of Transistors 855,000 at 1 μm
  • Addressable memory 4 gigabytes
  • Virtual memory 64 terabytes
  • First chip specifically made for portable computers because of low power consumption of chip
  • Highly integrated, includes cache, bus, and memory controllers
• 80486SX
  • Introduced April 22, 1991
  • Clock speeds:
    • 9/16/1991 16MHz with 13 MIPS, 20MHz with 16.5 MIPS
    • 9/16/1991 25MHz with 20 MIPS (12 SPECint92)
    • 9/21/1992 33MHz with 27 MIPS (15.86 SPECint92)
  • Bus Width 32 bits
  • Number of Transistors 1.185 million at 1 μm and 900,000 at 0.8 μm
  • Addressable memory 4 gigabytes
  • Virtual memory 64 terabytes
  • Identical in design to 486DX but without math coprocessor
  • Used in low-cost entry to 486 CPU desktop computing
  • Upgradable with the Intel OverDrive processor
• 80486DX2
  • Introduced March 3. 1992
  • Clock speeds:
    • 50MHz with 41 MIPS (29.9 SPECint92, 14.2 SPECfp92 on Micronics M4P 256K L2)
    • 8/10/1992 66 MHz with 54 MIPS (39.6 SPECint92, 18.8 SPECfp92 on Micronics M4P 256K L2)
  • Bus Width 32 bits
  • Number of Transistors 1.2 million at 0.8 μm
  • Addressable memory 4 gigabytes
  • Virtual memory 64 terabytes
  • Used in high performance, low cost desktops
  • Uses "speed doubler" technology where the microprocessor core runs at twice the speed of the bus
• 80486SL
  • Introduced November 9, 1992
  • Clock speeds:
    • 20MHz with 15.4MIPS
    • 25MHz with 19 MIPS
    • 33MHz with 25 MIPS
  • Bus Width 32 bits
  • Number of Transistors 1.4 million at 0.8 μm
  • Addressable memory 64 megabytes
  • Virtual memory 64 terabytes
  • Used in notebook PCS
• Pentium
  • Introduced March 22, 1993
  • Clock speeds:
    • 60MHz with 100 MIPS (70.4 SPECint92, 55.1 SPECfp92 on Xpress 256K L2)
    • 66 MHz with 112 MIPS (77.9 SPECint92, 63.6 SPECfp92 on Xpress 256K L2)
    • 75 MHz Introduced October 10, 1994
    • 90 MHz Introduced March 7, 1994
    • 100 MHz Introduced March 7, 1994
    • 120 MHz Introduced March 27, 1995
    • 133 MHz Introduced June, 1995
    • 150 MHz Introduced January 4, 1996
    • 166 MHz Introduced January 4, 1996
    • 200 MHz Introduced June 10, 1996
  • Bus width 64 bits
  • Address bus 32 bits
  • Number of transistors 3.1 million at 0.8 μm
  • Addressable Memory 4 gigabytes
  • Virtual Memory 64 terabytes
  • Pin count 273 PGA Package
  • Package dimensions 2.16" x 2.16"
  • Superscalar architecture brought 5X the performance of the 33MHz 486DX processor
  • Ran on 5volts of power
  • Used in desktops
• 80486DX4
  • Introduced March 7, 1994
  • Clock speeds:
    • 75MHz with 53 MIPS (41.3 SPECint92, 20.1 SPECfp92 on Micronics M4P 256K L2)
    • 100MHz with 70.7 MIPS (54.59 SPECint92, 26.91 SPECfp92 on Micronics M4P 256K L2)
  • Number of Transistors 1.6 million at 0.6 μm
  • Bus width 32 bits
  • Addressable memory 4 gigabytes
  • Virtual memory 64 terabytes
  • Pin count 168 PGA Package, 208 SQFP Package
  • Die size 345 Square mm
  • Used in high performance entry-level desktops and value notebooks
• Pentium Pro (200, 180, 166, 150 MHz)
  • Variants
    • 150 MHz Introduced November 1, 1995
    • 166 MHz Introduced November 1, 1995
    • 180 MHz Introduced November 1, 1995
    • 200 MHz Introduced November 1, 1995
    • 200 MHz (1MB L2 Cache) Introduced August 18, 1997
• Pentium MMX
  • Variants
    • 166 MHz Introduced January 8, 1997
    • 200 MHz Introduced January 8, 1997
    • 233 MHz Introduced June 2, 1997
    • 166 MHz (Mobile) Introduced January 12, 1998
    • 200 MHz (Mobile) Introduced September 8, 1997
    • 233 MHz (Mobile) Introduced September 8, 1997
    • 266 MHz (Mobile) Introduced January 12, 1998
    • 300 MHz (Mobile) Introduced January 7, 1999
• Pentium II
  • Variants
    • 233 MHz Introduced May 7, 1997
    • 266 MHz Introduced May 7, 1997
    • 300 MHz Introduced May 7, 1997
    • 333 MHz Introduced January 26, 1998
    • 350 MHz Introduced April 15, 1998
    • 400 MHz Introduced April 15, 1998
    • 450 MHz Introduced August 24, 1998
    • 233 MHz (Mobile) Introduced April 2, 1998
    • 266 MHz (Mobile) Introduced April 2, 1998
    • 300 MHz (Mobile) Introduced September 9, 1998
    • 333 MHz (Mobile)
    • 366 MHz (Mobile)
• Celeron
  • Variants
    • 266 MHz Introduced April 15, 1998
    • 300 MHz Introduced June 9, 1998
    • 300A MHz Introduced August 24, 1998
    • 333 MHz Introduced August 24, 1998
    • 366 MHz Introduced January 4, 1999
    • 400 MHz Introduced January 4, 1999
    • 433 MHz Introduced March 22, 1999
    • 466 MHz
    • 500 MHz Introduced August 2, 1999
    • 533 MHz Introduced January 4, 2000
    • 566 MHz
    • 633 MHz Introduced June 26, 2000
    • 667 MHz Introduced June 26, 2000
    • 700 MHz Introduced June 26, 2000
    • 733 MHz Introduced November 13, 2000
    • 766 MHz Introduced November 13, 2000
    • 800 MHz
    • 850 MHz Introducted April 9, 2001
    • 900 MHz Introducted July 2, 2001
    • 950 MHz Introduced August 31, 2001
    • 1000 MHz Introduced August 31, 2001
    • 1100 MHz Introduced August 31, 2001
    • 1200 MHz Introduced October 2, 2001
    • 1300 MHz Introduced January 3, 2002
    • 266 MHz (Mobile)
    • 300 MHz (Mobile)
    • 333 MHz (Mobile) Introduced April 5, 1999
    • 366 MHz (Mobile)
    • 400 MHz (Mobile)
    • 433 MHz (Mobile)
    • 450 MHz (Mobile) Introduced February 14, 2000
    • 466 MHz (Mobile)
    • 500 MHz (Mobile) Introduced February 14, 2000
    • 550 MHz (Mobile)
    • 600 MHz (Mobile) Introduced June 19, 2000
    • 650 MHz (Mobile) Introduced June 19, 2000
    • 700 MHz (Mobile) Introduced September 25, 2000
    • 750 MHz (Mobile) Introducted March 19, 2001
    • 800 MHz (Mobile)
    • 850 MHz (Mobile) Introduced July 2, 2001
    • 600 MHz (LV Mobile)
    • 500 MHz (ULV Mobile) Introducted January 30, 2001
    • 600 MHz (ULV Mobile)
    • Later Celerons are based on the Pentium 4's NetBurst microarchitecture.
• Pentium II Xeon (400 MHz)
  • Variants
    • 400 MHz Introduced June 29, 1998
    • 450 MHz (512 KB L2 Cache) Introduced October 6, 1998
    • 450 MHz (1 MB and 2 MB L2 Cache) Introduced January 5, 1999
• Pentium III
  • Introduced February 26, 1999
  • Streaming SIMD Extensions
  • All Mobile Pentium III processors introduced in 2000 and later include SpeedStep Technology, allowing them to reduce processor speed to increase battery life.
  • Variants
    • 450 MHz Introduced February 26, 1999
    • 500 MHz Introduced February 26, 1999
    • 533 MHz Introduced September 27, 1999
    • 550 MHz Introduced May 17, 1999
    • 600 MHz Introduced August 2, 1999
    • 650 MHz Introduced October 25, 1999
    • 667 MHz Introduced October 25, 1999
    • 700 MHz Introduced October 25, 1999
    • 733 MHz Introduced October 25, 1999
    • 750 MHz Introduced December 20, 1999
    • 800 MHz Introduced December 20, 1999
    • 850 MHz 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)
    • 1133 MHz (Tualatin: 512k cache, 0.13 μm process)
    • 1333 MHz (Tualatin: 512k cache, 0.13 μm process)
    • 1400 MHz (Tualatin: 512k cache, 0.13 μm process)
    • 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) Introducted March 19, 2001
    • 1000 MHz (Mobile) Introducted March 19, 2001
    • 866 MHz (Mobile Tualatin: 512k cache, 0.13 μm process) Introduced July 30, 2001
    • 933 MHz (Mobile Tualatin: 512k cache, 0.13 μm process) Introduced July 30, 2001
    • 1000 MHz (Mobile Tualatin: 512k cache, 0.13 μm process) Introduced July 30, 2001
    • 1200 MHz (Mobile Tualatin: 512k cache, 0.13 μm process) Introduced October 1, 2001
    • 600 MHz (LV Mobile) Introduced June 19, 2000
    • 700 MHz (LV Mobile) Introduced February 27, 2001
    • 750 MHz (LV Mobile) Introduced May 21,2001
    • 500 MHz (ULV Mobile) Introducted January 30, 2001
    • 600 MHz (ULV Mobile) Introduced May 21, 2001
    • 700 MHz (ULV Mobile)

• Pentium(r) III Xeon(tm) Processor
  • Introduced October 25, 1999
  • Number of transistors: 9.5 million at 0.25 μm or 28 million at 0.18 μm)
  • L2 cache is 256KB, 1MB, or 2MB Advanced Transfer Cache (Integrated)
  • Processor Package Sytle is Single Edge Contact Cartridge (S.E.C.C.2) or SC330
  • System Bus Speed 133 MHz (256KB L2 cache) or 100 MHz (1-2MB L2 cache)
  • System Bus Width 64 bit
  • Addressable memory 64 gigabytes
  • Used in two-way servers and workstations (256KB L2) or 4- and 8-way servers (1-2MB L2)
  • Variants
    • 500 MHz (0.25 μm process) Introduced March 17, 1999
    • 550 MHz (0.25 μm process) Introduced August 23, 1999
    • 600 MHz (0.18 μm process, 256KB L2 cache) Introduced October 25, 1999
    • 667 MHz (0.18 μm process, 256KB L2 cache) Introduced October 25, 1999
    • 733 MHz (0.18 μm process, 256KB L2 cache) Introduced October 25, 1999
    • 800 MHz (0.18 μm process, 256KB L2 cache) Introduced January 12, 2000
    • 866 MHz (0.18 μm process, 256KB L2 cache) Introduced April 10, 2000
    • 933 MHz (0.18 μm process, 256KB L2 cache)
    • 1000 MHz (0.18 μm process, 256KB L2 cache) Introduced August 22, 2000
    • 700 MHz (0.18 μm process, 1-2MB L2 cache) Introduced May 22, 2000
    • 900 MHz (0.18 μm process, 2MB L2 cache) Introduced March 21, 2001

• Pentium(r) 4 Processor built on 0.18 μm process technology (1.40 and 1.50 GHz)
  • Introduced November 20, 2000
  • L2 cache was 256KB Advanced Tansfer Cache (Integrated)
  • Processor Package Style was PGA423, PGA478
  • System Bus Speed 400 MHz
  • SSE2 SIMD Extensions
  • Number of Transistors 42 million
  • Used in desktops and entry-level workstations
• Pentium(r) 4 Processor built on 0.18 μm process technology (1.7 GHz)
  • Introduced April 23, 2001
  • See the 1.4 and 1.5 chips for details
• Intel(r) Xeon(tm) Processor (1.4, 1.5, 1.7 GHz)
  • Introduced May 21, 2001
  • L2 cache was 256KB Advanced Transfer Chache (Integrated)
  • Processor Package Style was Organic Lan Grid Array 603 (OLGA 603)
  • System Bus Speed 400MHz
  • SSE2 SIMD Extensions
  • Used in high-performance and mid-range dual processor enabled workstations
• Pentium(r) 4 Processor built on 0.18 μm process technology (1.6 and 1.8 GHz)
  • Introduced July 2, 2001
  • See 1.4 and 1.5 chips for details
  • Core Voltage is 1.15 volts in Maximum Performance Mode; 1.05 volts in Battery Optimized Mode
  • Power <1 watt in Battery Optimized Mode
  • Used in full-size and then light mobile PCs
• Pentium(r) 4 Processor built on 0.18 μm process technology "Willamette" (1.9 and 2.0 GHz)
  • Introduced August 27, 2001
  • See 1.4 and 1.5 chips for details
• Xeon (2.0 GHz)
  • Introduced September 25, 2001
• Pentium® 4 (2 GHz, 2.20 GHz)
  • Introduced January 7, 2002
• Pentium® 4 (2.4 GHz)
  • Introduced April 2, 2002

• Itanium (733 MHz and 800 MHz)
• Itanium 2 (900 MHz and 1 GHz)

• Pentium 4 Processor built on 0.13 μm process technology "Northwood A"(1.7, 1.8, 1.9, 2, 2.2, 2.4, 2.5, 2.6 GHz)
  • 400 MHz system bus.
• Pentium 4 Processor built on 0.13 μm process technology "Northwood B" (2.26, 2.4, 2.53, 2.66, 2.8, 3.06 GHz)
  • 533 MHz system bus. (3.06 includes Intel's hyper threading technology).
• Mobile Intel Pentium 4 - M Processor build on 0.13 μm process technology; Heart of the Intel mobile "Centrino" system; "Banias" (1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.2 GHz)
  • 400 MHz system bus.
• Pentium 4 Processor built on 0.13 μm process technology "Northwood C" (2.4, 2.6, 2.8, 3.0, 3.2 GHz)
  • 800MHz system bus (all versions include Hyper Threading)
  • 6500 to 10000 MIPS
• Pentium 4E Processor built on 0.09 μm process technology "Prescott" (2.8, 3.0, 3.2, 3.4) 1MB L2 cache
  • 533/800MHz system bus (all versions include Hyper Threading except 2.8 (533))
  • Designed specifically for advanced gaming
  • 7500 to 11000 MIPS
• Intel Pentium 4 Extreme Edition (EE)
  • same as Pentium 4 Processor
  • 2MB L3 Cache