AMD Am486 Microprocessor

The Am486 was a 80486-class family of computer processors that were produced by AMD in the 1990s. Intel beat AMD to market by nearly four years, but AMD priced its 40 MHz 486 at or below Intel's price for a 33 MHz chip, offering about 20% better performance for the same price. Early AMD 486 chips were drop-in replacements for their Intel counterparts, but later AMD clock-doubled 486s ran at 3.3 volts instead of Intel's 5 volts, which limited their suitability as upgrade chips until third-party voltage adapters appeared on the market. Image File history File links Download high resolution version (678x678, 40 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Am486 ... Image File history File links Download high resolution version (678x678, 40 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Am486 ... Intel i486 DX2- top view The Intel i486 (also called 486 or 80486) is a range of Intel CISC microprocessors which is part of the Intel x86 family of processors. ... A computer is a machine designed for manipulating data according to a list of instructions known as a program. ... CPU redirects here. ... Advanced Micro Devices, Inc. ... The 1990s decade refers to the years from 1990 to 1999, inclusive. ...

While competing 486 chips, such as those from Cyrix, benchmarked lower than the equivalent Intel chip, AMD's 486 matched Intel's performance on a clock-for-clock basis. Cyrix corporate logo Cyrix was a CPU manufacturer that began in 1988 as a specialist supplier of high-performance math co-processors for 286 and 386 systems. ...

While the Am386 was primarily used by small computer manufacturers, the Am486DX, DX2, and SX2 chips gained acceptance among larger computer manufactuers, expecially Acer and Compaq, in the 1994 time frame. AMD Am386DX-40 CPU The Am386 central processing unit microprocessor was released by AMD in 1991. ... Acer (LSE: ACID) (Chinese:宏碁股份有限公司) is a Taiwan-based company which by 2004 had grown to be one of the worlds top five branded PC vendors. ... Compaq was a personal computer company founded in 1982 by Rod Canion, Jim Harris and Bill Murto. ... 1994 (MCMXCIV) was a common year starting on Saturday of the Gregorian calendar, and was designated like the International Year of the Family and the International Year of the Sport and the Olympic Ideal. // Events January Bill Clinton January 1 : North American Free Trade Agreement (NAFTA) goes into effect. ...

AMD's higher clocked 486 chips, provided superior performance to many of the early Pentium chips, especially the 60 and 66 MHz launch products. While equivalent Intel 80486DX4 chips were priced high and required a minor socket modification, AMD priced low. Intel's DX4 chips had twice the cache of the AMD chips, giving them a slight performance edge, but AMD's DX4-100 usually cost less than Intel's DX2-66. The Intel DX4 is a clock-tripled 80486 microprocessor chip. ...

The 133MHz AMD Am5x86 was an enhanced Am486. AMD 5x86-P75 The AMD 5x86 processor is an x86-compatible CPU introduced in 1995 by AMD for use in 486-class computer systems. ...

1994 (MCMXCIV) was a common year starting on Saturday of the Gregorian calendar, and was designated like the International Year of the Family and the International Year of the Sport and the Olympic Ideal. // Events January Bill Clinton January 1 : North American Free Trade Agreement (NAFTA) goes into effect. ... 1993 (MCMXCIII) was a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ...

External links

• AMD: Enhanced Am486® Microprocessors
• AMD: 30 Years of Pursuing the Leader. Part 2
• cpu-collection.de AMD Am486 processor images and descriptions