Cyrix Cx486DX

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Cyrix 486 DX 40 MHz
That of a Cyrix Cx486DX-40

The Cx486DX was a microprocessor of the 80486 generation from Cyrix ( Cx486 ) and roughly comparable to the Intel i486DX . Like this one, it had a math coprocessor and was therefore the big brother of the Cx486S .

As usual with Cyrix, the Cx486DX was also sold as the SGS-Thomson ST486DX. The two processors do not differ from each other except for their names.

Model data

  • Code name: M6
  • Sold as: Cyrix Cx486DX & SGS-Thomson ST486DX
  • L1 cache: 8  KiB (unified)
  • L2 cache: depending on the mainboard or chipset used
  • Socket 3 with a front side bus from 33 to 50 MHz
  • Operating voltage (VCore): 5.0 V.
  • Release DATE: September 1993
  • Manufacturing technology: 0.65 µm
  • The size:? mm² with 1.1 million transistors
  • Clock rates: 33, 40 and 50 MHz

See also