A computer processor
developed by Intel
as an upgrade to the 386 processor series and commonly referred to as the
486 or i486. The 80486 has 8k of memory cache built into
the processor with 32-bit architecture and was available in clock rates ranging from 20MHz
to 33MHz. The 486 was available as either a DX or SX, the DX features a
built in coprocessor, the SX does not. In addition to the 486SX, a 486SX2 was also
available and was capable of doubling the speed.
- In 1990
the 486SL was introduced and utilized less
power than the 486 and is mainly used in portable
computers.
- In 1992 the
486DX2 was introduced and ran at double the clock rate of a 486.
- In 1994 the 486DX4
was introduced, it
tripled the clock rate of the 486 and has doubled the cache (16k). If you had a 33MHz it
would make it a 100MHz. Note: there is no 486SX4.
Also see: Processor definitions
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