CPU |
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| CPU | Introduction
Date |
Clock Speeds | Bus Width | Number of
Transistors |
Addressable
Memory |
Virtual
Memory |
Brief
Description |
|---|---|---|---|---|---|---|---|
| 4004 | 11/15/71 | 108 KHz | 4 bits | 2,300
(10 microns) |
640 bytes | First microcomputer chip,
Arithmetic manipulation |
|
| 8008 | 4/1/72 | 108 KHz | 8 bits | 3,500 | 16 KBytes | Data/character manipulation | |
| 8080 | 4/1/74 | 2 MHz | 8 bits | 6,000
(6 microns) |
64 KBytes | 10X the performance of the 8008 | |
| 8086 | 6/8/78 | 5 MHz
8 MHz 10 MHz |
16 bits | 29,000
(3 microns) |
1 Megabyte | 10X the performance of the 8080 | |
| 8088 | 6/1/79 | 5 MHz
8 MHz |
8 bits | 29,000
(3 microns) |
Identical to 8086 except for its 8-bit external bus | ||
| 80286 | 2/1/82 | 8 MHz
10 MHz 12 MHz |
16 bits | 134,000
(1.5 microns) |
16 Megabytes | 1 gigabyte | 3-6X the performance of the 8086 |
| Intel386(TM)DX Microprocessor | 10/17/85 | 16 MHz
20 MHz 25 MHz 33 MHz |
32 bits | 275,000
(1 micron) |
4 gigabytes | 64 terabytes | First X86 chip to handle 32-bit data sets |
| Intel386(TM)SX Microprocessor | 6/16/88 | 16 MHz
20 MHz |
16 bits | 275,000
(1 micron) |
4 gigabytes | 64 terabytes | 16-bit address bus enabled low-cost 32-bit processing |
| Intel486(TM)DX Microprocessor | 4/10/89 | 25 MHz
33 MHz 50 MHz |
32 bits | 1,200,000
(1 micron, .8 micron with 50 MHz) |
4 gigabytes | 64 terabytes | Level 1 cache on chip |
| Intel486(TM)SX Microprocessor | 4/22/91 | 16 MHz
20 MHz 25 MHz 33 MHz |
32 bits | 1,185,000
(.8 micron) |
4 gigabytes | 64 terabytes | identical in design to Intel486(TM) DX but without math coprocessor |
| Pentium. Processor | 3/22/93 | 60MHz
66MHz 75MHz 90MHz 100MHz 120MHz 133MHz 150MHz 166MHz |
32 bits | 3.1 million
(.8 micron) |
4 gigabytes | 64 terabytes | superscaler architecture brought 5X the performance of the 33-MHz Intel486 DX processor |
| Pentium. Pro Processor | 3/27/95 | 150MHz
180MHz 200MHz |
32 bits | 5.5 million
(.32 micron) |
4 gigabytes | 64 terabytes | dynamic execution architecture drives high-performing processor |