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===32-bit processors: [[P5 (microarchitecture)|P5]] microarchitecture=== <!--P5 family-->[[File:KL Intel Pentium P5.jpg|thumb|Intel Pentium P5 (A80501) 60 MHz, without GoldCap]] [[File:KL Intel Pentium A80501.jpg|thumb|Intel Pentium P5 (A80501) 66 MHz, with GoldCap]] ====Original [[Pentium (original)|Pentium]]==== * Introduced March 22, 1993 * Bus width: 64 bits * System bus clock rate 60 or 66 MHz * Address bus: 32 bits * Addressable memory 4 GB * Virtual memory 64 TB * [[Superscalar]] architecture * Runs on 3.3 volts (except the very first generation "P5") * Used in desktops * 8 KB of instruction [[CPU cache|cache]] * 8 KB of data cache * P5 – [[800 nanometer|0.8 μm process technology]] ** Introduced March 22, 1993 ** 3.1 million transistors ** The only Pentium to run on 5 Volts ** [[Socket 4]] 273 pin PGA Package ** Package dimensions 2.16 in × 2.16 in ** Family 5 model 1 ** Variants *** 60 MHz, 100 MIPS (70.4 SPECint92, 55.1 SPECfp92 on Xpress 256 KB L2) *** 66 MHz, 112 MIPS (77.9 SPECint92, 63.6 SPECfp92 on Xpress 256 KB L2) * P54 – [[600 nanometer|0.6 μm process technology]] ** [[Socket 5]] 296/320-pin PGA package ** 3.2 million transistors ** Variants *** 75 MHz, 126.5 MIPS (2.31 SPECint95, 2.02 SPECfp95 on Gateway P5 256K L2) **** Introduced October 10, 1994 *** 90, 100 MHz, 149.8 and 166.3 MIPS respectively (2.74 SPECint95, 2.39 SPECfp95 on Gateway P5 256K L2 and 3.30 SPECint95, 2.59 SPECfp95 on Xpress 1ML2 respectively) **** Introduced March 7, 1994 * P54CQS – [[350 nanometer|0.35 μm process technology]] ** [[Socket 5]] 296/320 pin PGA package ** 3.2 million transistors ** Variants *** 120 MHz, 203 MIPS (3.72 SPECint95, 2.81 SPECfp95 on Xpress 1 MB L2) **** Introduced March 27, 1995 *[[File:Intel Pentium 133.jpg|thumb|Intel Pentium P54 133 MHz]]P54CS – [[350 nanometer|0.35 μm process technology]] ** 3.3 million transistors ** 90 mm<sup>2</sup> die size ** Family 5 model 2 ** Variants ** [[Socket 5]] 296/320-pin PGA package *** 133 MHz, 218.9 MIPS (4.14 SPECint95, 3.12 SPECfp95 on Xpress 1 MB L2) **** Introduced June 12, 1995 *** 150, 166 MHz, 230 and 247 MIPS respectively **** Introduced January 4, 1996 ** [[Socket 7]] 296/321-pin PGA package *** 200 MHz, 270 MIPS (5.47 SPECint95, 3.68 SPECfp95) **** Introduced June 10, 1996 [[File:KL Intel Pentium MMX.jpg|thumb|Intel Pentium P55C 166 MHz]] ====[[Pentium MMX|Pentium with MMX Technology]]==== * P55C – [[350 nanometer|0.35 μm process technology]] ** Introduced January 8, 1997 ** Intel [[MMX (instruction set)]] support ** [[Socket 7]] 296/321 pin PGA (pin grid array) package ** 16 KB L1 instruction cache ** 16 KB data cache ** 4.5 million transistors ** System bus clock rate 66 MHz ** Basic P55C is family 5 model 4, mobile are family 5 model 7 and 8 ** Variants *** 166, 200 MHz introduced January 8, 1997 *** 233 MHz introduced June 2, 1997 *** 133 MHz (Mobile) *** 166, 266 MHz (Mobile) introduced January 12, 1998 *** 200, 233 MHz (Mobile) introduced September 8, 1997 *** 300 MHz (Mobile) introduced January 7, 1999
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