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 List of Intel microprocessors - Definition 

This list of Intel microprocessors attempts to present all of Intel's processors (µPs) from the pioneering 4-bit 4004 (1971) to the present high-end offerings, the 64-bit Itanium 2 (2002) and Pentium 4F with EM64T (2004). Concise technical data are given for each product.

Contents

The 4-bit and 8-bit processors

Intel 4004: 1st single-chip µP

  • Introduced November 15, 1971
  • Clock speed 740 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 4th Qtr, 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 terminal

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


The 16-bit processors: Origin of x86

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


iAPX 432 (chronological entry)

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

  • A version of the 80186 with an 8-bit external data bus
  • Later renamed the iAPX 188

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 Encyclopędia Britannica in 45 seconds


32-bit processors: The non-x86 µPs

iAPX 432

  • Introduced January 1, 1981 as Intel's first 32-bit microprocessor
  • Object/capability architecture
  • Microcoded operating system primitives
  • One terabyte virtual address space
  • Hardware support for fault tolerance
  • Two-chip General Data Processor (GDP), consists of 43201 and 43202
  • 43203 Interface Processor (IP) interfaces to I/O subsystem
  • 43204 Bus Interface Unit (BIU) simplifies building multiprocessor systems
  • 43205 Memory Control Unit (MCU)
  • Architecture and execution unit internal data paths 32 bit
  • Clock speeds:
    • 5 MHz
    • 7 MHz
    • 8 MHz


80186, 80188, 80286, 80386(DX) (chronological entries)

  • Introduced 19811988
  • See main entries

i960 aka 80960

  • Introduced April 5, 1988
  • RISC-like 32-bit architecture
  • predominantly used in embedded systems
  • Evolved from the capability processor developed for the BiiN joint venture with Siemens
  • Many variants identified by two-letter suffixes.


80386SX (chronological entry)


80376 (chronological entry)

i860 aka 80860

32-bit processors: The 80386 range

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 Encyclopędia Britannica in 12.5 seconds


80960 (i960) (chronological entry)

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

80376

  • Introduced January 16, 1989; Discontinued June 15, 2001
  • Variant of 386 intended for embedded systems
  • No "real mode", starts up directly in "protected mode"
  • Replaced by much more successful 80386EX from 1994


80860 (i860) (chronological entry)


80486DX (chronological entry)

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/DX2/SL, Pentium, 80486DX4 (chronological entries)

Intel386 EX

  • Introduced August 1994
  • Variant of 80386SX intended for embedded systems
  • Static core, i.e. may run as slowly (and thus, power efficiently) as desired, down to full halt
  • On-chip peripherals:
    • clock and power mgmt
    • timers/counters
    • watchdog timer
    • serial I/O units (sync and async) and parallel I/O
    • DMA
    • RAM refresh
    • JTAG test logic
  • Significantly more successful than the 80376
  • Used aboard several orbiting satellites and microsatellites
  • Used in NASA's FlightLinux project

32-bit processors: The 80486 range

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 (chronological entry)

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 (chronological entry)

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

32-bit processors: The Pentium ("I")

Pentium ("Classic")

  • P5 0.8 μm process technology
  • Introduced March 22, 1993
  • Bus width 64 bits
  • System bus speed 60 or 66 MHz
  • Address bus 32 bits
  • Number of transistors 3.1 million
  • Addressable Memory 4 gigabytes
  • Virtual Memory 64 terabytes
  • Socket 4 273 pin PGA processor package
  • Package dimensions 2.16" x 2.16"
  • Superscalar architecture brought 5X the performance of the 33MHz 486DX processor
  • Runs on 5 volts
  • Used in desktops
  • 16KB of L1 cache
  • Variants
    • 60 MHz 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)
  • P54C 0.6 μm process technology
  • Socket 7 296/321 pin PGA package
  • Number of transistors 3.2 million
  • P54C 0.35 &#00B2;m process technology
  • Number of transistors 3.3 million
  • 90mm  die size


80486DX4 (chronological entry)


80386EX (Intel386 EX) (chronological entry)


Pentium Pro (chronological entry)

Pentium MMX

32-bit processors: Pentium Pro, II, Celeron, III, M

Pentium Pro

  • 0.6 μm process technology
  • Introduced November 1, 1995
  • Precursor to Pentium II and III
  • Socket 8 processor package (387 pins) (Dual SPGA)
  • Number of transistors 22 million
  • 16KB L1 cache
  • 256KB integrated L2 cache
  • 60 MHz system bus speed
  • Variants
  • 0.35 μm process technology, or 0.35 μm CPU with 0.6 μm L2 cache
  • Introduced November 1, 1995
  • Number of transistors 36.5 million or 22 million
  • 512KB or 256KB integrated L2 cache
  • 60 or 66 MHz system bus speed
  • Variants
    • 166 MHz (66 MHz bus speed, 512KB 0.35 μm cache) Introduced November 1, 1995
    • 180 MHz (60 MHz bus speed, 256KB 0.6 μm cache) Introduced November 1, 1995
    • 200 MHz (66 MHz bus speed, 256KB 0.6 μm cache) Introduced November 1, 1995
    • 200 MHz (66 MHz bus speed, 512KB 0.35 μm cache) Introduced November 1, 1995
    • 200 MHz (66 MHz bus speed, 1MB 0.35 μm cache) Introduced August 18, 1997

Pentium II

  • Klamath 0.35 μm process technology (233, 266, 300MHz)
  • Pentium Pro with MMX and improved 16-bit performance
  • Introduced May 7, 1997
  • 242-pin Slot 1 (SEC) processor package
  • Number of transistors 7.5 million
  • 66MHz system bus speed
  • 32KB L1 cache
  • 512KB 1/2 speed external L2 cache
  • Variants
  • Deschutes 0.25 μm process technology (333, 250, 400, 450MHz)
  • Introduced January 26, 1998
  • 66MHz system bus speed (333MHz variant), 100MHz system bus speed for all models after
  • Variants

Celeron (Pentium II-based)



Pentium II Xeon chronological entry)

Pentium III

  • Katmai - 0.25 μm process technology
  • Introduced February 26, 1999
  • Improved PII, i.e. P6-based core, now including Streaming SIMD Extensions (SSE)
  • Number of transistors 9.5 million
  • 512KB 1/2 speed L2 External cache
  • 242-pin Slot-1 SECC2 (Single Edge Contact cartridge 2) processor package
  • System Bus Speed 100 MHz
  • Variants
  • Coppermine - 0.18 μm process technology
  • Introduced October 25, 1999
  • Number of transistors 28.1 million
  • 256KB Advanced Transfer L2 Cache (Integrated)
  • 242-pin Slot-1 SECC2 (Single Edge Contact cartridge 2) processor package, 370-pin FC-PGA (Flip-chip pin grid array) package
  • System Bus Speed 100 MHz, 133 MHz (Those with 133 MHz bus carried a 'B' suffix in their name)
  • Variants
  • Tualatin - 0.13 μm process technology
  • Introduced July 2001
  • Number of transistors 28.1 million
  • 32KB L1 cache
  • 512KB Advanced Transfer L2 cache (Integrated)
  • 370-pin FC-PGA (Flip-chip pin grid array) package
  • 133 MHz system bus speed
  • Variants
    • 1133 MHz
    • 1200 MHz
    • 1333 MHz
    • 1400 MHz

Pentium II and III Xeon

  • PII Xeon
  • Variants
  • PIII Xeon
  • 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 Style 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

Celeron (Pentium III Coppermine-based)


Pentium 4 (not 4EE, 4E, 4F), Itanium, P4-based Xeon, Itanium 2 (chronological entries)

  • Introduced April 2000 – July 2002
  • See main entries

Celeron (Pentium III Tualatin-based)

  • Tualatin Celeron - 0.13 μm process technology
  • 32KB L1 cache
  • 256KB Advanced Transfer L2 cache
  • 100 MHz system bus speed
  • Variants
    • 1.0 GHz
    • 1.1 GHz
    • 1.2 GHz
    • 1.3 GHz
    • 1.4 GHz

Pentium M

  • Banias 0.13 μm process technology
  • Introduced March 2003
  • 64KB L1 cache
  • 1MB L2 cache (integrated)
  • Based on Pentium III core, with SIMD SSE2 instructions and deeper pipeline
  • Number of transistors 77 million
  • Micro-FCPGA, Micro-FCBGA processor package
  • Heart of the Intel mobile "Centrino" system
  • 400 MHz Netburst-style system bus.
  • Variants
    • 900MHz (Ultra low voltage)
    • 1.0 GHz (Ultra low voltage)
    • 1.1 GHz (Low voltage)
    • 1.2 GHz (Low voltage)
    • 1.3 GHz
    • 1.4 GHz
    • 1.5 GHz
    • 1.6 GHz
    • 1.7 GHz
  • Dothan 0.09 μm (90nm) process technology
  • Introduced May 2004
  • 2MB L2 cache
  • Revised data prefetch unit
  • Variants
    • 1.0 GHz (Ultra low voltage)
    • 1.1 GHz (Ultra low voltage)
    • 1.3 GHz (Low voltage)
    • 1.4 GHz (Low voltage)
    • 1.5 GHz
    • 1.6 GHz
    • 1.7 GHz
    • 1.8 GHz
    • 1.9 GHz
    • 2.0 GHz
    • 2.1 GHz

Celeron M

  • Banias-512 0.13 μm process technology
  • Introduced March 2003
  • 64KB L1 cache
  • 512KB L2 cache (integrated)
  • No SpeedStep technology, is not part of the 'Centrino' package

32-bit processors: Pentium 4 range

Pentium 4

  • 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
  • 0.18 μm process technology (1.7 GHz)
    • Introduced April 23, 2001
    • See the 1.4 and 1.5 chips for details
  • 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
  • 0.18 μm process technology "Willamette" (1.9 and 2.0 GHz)
  • Pentium 4 (2 GHz, 2.20 GHz)
  • Pentium 4 (2.4 GHz)
  • 0.13 μm process technology "Northwood A"(1.7, 1.8, 1.9, 2, 2.2, 2.4, 2.5, 2.6 GHz)
    • Improved branch prediction and other microcodes tweaks
    • 512KB integrated L2 cache
    • Number of transistors 55 million
    • 400 MHz system bus.
  • 0.13 μm process technology "Northwood B" (2.26, 2.4, 2.53, 2.66, 2.8, 3.06 GHz)
  • 0.13 μm process technology "Northwood C" (2.4, 2.6, 2.8, 3.0, 3.2, 3.4 GHz)
    • 800MHz system bus (all versions include Hyper Threading)
    • 6500 to 10000 MIPS


Itanium (chronological entry)

Xeon

  • Official designation now Xeon, i.e. not "Pentium 4 Xeon"
  • Xeon 1.4, 1.5, 1.7 GHz
    • Introduced May 21, 2001
    • L2 cache was 256KB Advanced Transfer Cache (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
  • Xeon 2.0 GHz


Itanium 2 (chronological entry)

Pentium 4EE

  • Introduced September 2003
  • EE = "Extreme Edition"
  • same as Pentium 4 Processor, but with 2MB onboard L3 Cache

Pentium 4E

  • Introduced February 2004
  • built on 0.09 μm (90 nm) 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))
  • The processor's integer instruction pipeline has been increased from 20 stages to 32 stages, which theoretically allows for even greater clock speeds.
  • 7500 to 11000 MIPS

Pentium 4F

  • Introduced Spring 2004
  • same core as 4E, "Prescott"
  • 3.2–3.6 GHz
  • starting with the D0 stepping of this processor, EM64T 64-bit extensions has also been incorporated


The 64-bit processors: Itanium & ...

Itanium

Itanium 2


Pentium M (chronological entry)


Pentium 4EE, 4E (chronological entries)

  • Introduced September 2003, February 2004, respectively
  • See main entries

EM64T

  • Intel® Extended Memory 64 Technology
  • Introduced Spring 2004, with the Pentium 4F (D0 and later P4 steppings)
  • 64-bit architecture extension for the x86 range; near clone of AMD64


External links


pl:Mikroprocesory firmy Intel de:Mikroprozessoren von Intel

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