Am5x86

Also known as AMD Am5x86, 80486DX5-133, AMD 5x86

The Am5x86 processor is an x86-compatible CPU announced in November 1995 by AMD for use in 486-class computer systems. It began shipping in December 1995, with a base price of $93 per unit in bulk quantities. Before being released, it was in development under the codename "X5". Despite the 5x86 name, it is a 486 CPU, and does not implement 586 or Pentium instructions such as cmpxchg8b. It competed primarily with the Pentium OverDrive, which is a true 586 CPU with all 586 instructions.

Key facts

CPU.image: KL AMD 5x86.jpg
CPU.image_size: 200px
CPU.caption: An early Am5x86-P75 for Socket 3, model ADW
CPU.produced start: November 1995
CPU.produced end: 1999
CPU.slowest: 133
CPU.slow unit: MHz
CPU.fastest: 160
CPU.fast unit: MHz
CPU.fsb slowest: 33
CPU.fsb slow unit: MHz
CPU.fsb fastest: 50
CPU.fsb fast unit: MHz
CPU.size from: 0.35 μm
CPU.soldby: AMD
CPU.designfirm: AMD
CPU.manuf1: AMD
CPU.sock1: Socket 1 (with voltage regulator)

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Wikidata facts

Image: KL AMD 5x86.jpg

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Commons category: AMD Am5x86

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Article

4 sections

Contents

Specifications
Models
References
External links

== Specifications == The Am5x86 (also known as the 5x86-133, Am5x86, X5-133, and sold under various 3rd-party labels such as the Kingston Technology "Turbochip") is an Enhanced Am486 processor with an internally set multiplier of 4, allowing it to run at 133 MHz on systems without official support for clock-multiplied DX2 or DX4 486 processors. Like all Enhanced Am486, the Am5x86 featured write-back L1 cache, and unlike all but a few, a generous 16 kilobytes rather than the more common 8 KB. A rare 150 MHz-rated OEM part was also released by AMD.