Difference between revisions of "Intel 80486"
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The '''Intel 80486''' is the successor to the [[Intel 80386]] in the [[Intel x86]] line of [[microprocessor]]s. It is basically the same [[Central Processing Unit|CPU]] as the 386, but includes the functionality of the [[Intel 80387]] [[floating point]] unit, and an 8K byte [[cache]]. | The '''Intel 80486''' is the successor to the [[Intel 80386]] in the [[Intel x86]] line of [[microprocessor]]s. It is basically the same [[Central Processing Unit|CPU]] as the 386, but includes the functionality of the [[Intel 80387]] [[floating point]] unit, and an 8K byte [[cache]]. | ||
| − | Implementation changes mean about half the [[instruction]]s execute in one clock cycle, instead of the two used in the 386, speeding it up considerably. | + | Implementation changes mean about half the [[instruction]]s execute in one clock cycle, instead of the two used in the 386, speeding it up considerably. Its [[main memory]] [[bus]] is 32 [[bit]]s wide, the same as the 386.` |
Its replacement was the [[Intel Pentium]]. | Its replacement was the [[Intel Pentium]]. | ||
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Revision as of 00:45, 7 September 2018
The Intel 80486 is the successor to the Intel 80386 in the Intel x86 line of microprocessors. It is basically the same CPU as the 386, but includes the functionality of the Intel 80387 floating point unit, and an 8K byte cache.
Implementation changes mean about half the instructions execute in one clock cycle, instead of the two used in the 386, speeding it up considerably. Its main memory bus is 32 bits wide, the same as the 386.`
Its replacement was the Intel Pentium.
