Intel 486
(Or "i486", "iAPX 80486", and "Intel DX4" but usually just "486"). A range of href="module.php?name=Lexikon&file=search&eid=1&query=Intel">Intel href="module.php?name=Lexikon&file=search&eid=1&query=CISC">CISC href="module.php?name=Lexikon&file=search&eid=1&query=microprocessors">microprocessors which is part of the href="module.php?name=Lexikon&file=search&eid=1&query=Intel 80x86">Intel 80x86 family of processors. The 486s are very similar to their immediate predecessor, the href="module.php?name=Lexikon&file=search&eid=1&query=Intel 80386">Intel 80386DX. The main differences are that the 486 has an optimised href="module.php?name=Lexikon&file=search&eid=1&query=instruction set">instruction set, has an on-chip unified instruction and data href="module.php?name=Lexikon&file=search&eid=1&query=cache">cache, an optional on-chip href="module.php?name=Lexikon&file=search&eid=1&query=floating-point unit">floating-point unit (FPU), and an enhanced {bus interface unit}. These improvements yield a rough doubling in performance over an href="module.php?name=Lexikon&file=search&eid=1&query=Intel 80386">Intel 80386 at the same href="module.php?name=Lexikon&file=search&eid=1&query=clock rate">clock rate. There are several suffixes and variants including: href="module.php?name=Lexikon&file=search&eid=1&query=Intel 486SX">Intel 486SX - a 486DX with its href="module.php?name=Lexikon&file=search&eid=1&query=FPU">FPU disabled (see href="module.php?name=Lexikon&file=search&eid=1&query=crippleware">crippleware). href="module.php?name=Lexikon&file=search&eid=1&query=Intel 486DX">Intel 486DX - 486SX with a working href="module.php?name=Lexikon&file=search&eid=1&query=FPU">FPU. 486DX-2 - runs at twice the external href="module.php?name=Lexikon&file=search&eid=1&query=clock rate">clock rate. 486SX-2 - runs at twice the external href="module.php?name=Lexikon&file=search&eid=1&query=clock rate">clock rate. 486SL - 486DX with power conservation circuitry. 486SL-NM - 486SX with power conservation circuitry SL enhanced suffix, denotes a 486 with special power conservation circuitry similar to that in the 486SL processors. 487 - 486DX with a slightly different pinout for use in 486SX systems. OverDrive - 486DX-2 with a slightly different pinout for use in 486SX systems. href="module.php?name=Lexikon&file=search&eid=1&query=RapidCAD">RapidCAD - 486DX in a special package with a companion href="module.php?name=Lexikon&file=search&eid=1&query=FPU">FPU dummy package for use in href="module.php?name=Lexikon&file=search&eid=1&query=Intel 80386">Intel 80386 systems. href="module.php?name=Lexikon&file=search&eid=1&query=Intel DX4">Intel DX4, href="module.php?name=Lexikon&file=search&eid=1&query=Cyrix">Cyrix href="module.php?name=Lexikon&file=search&eid=1&query=Cy486SLC">Cy486SLC. External href="module.php?name=Lexikon&file=search&eid=1&query=clock rates">clock rates include 16MHz, 20MHz, 25MHz, 33MHz, 40MHz, although 16Mhz is rare now, and the 20MHz processors are often clock doubled. The 486 processor has been licensed or reverse engineered by other companies such as href="module.php?name=Lexikon&file=search&eid=1&query=IBM">IBM, href="module.php?name=Lexikon&file=search&eid=1&query=AMD">AMD, href="module.php?name=Lexikon&file=search&eid=1&query=Cyrix">Cyrix, and {Chips & Technologies}. Some are almost exact duplicates in specications and performance, some aren' t. The successor to the 486 is the href="module.php?name=Lexikon&file=search&eid=1&query=Pentium">Pentium. (1995-02-21) In addition suitable contents:
[ href="module.php?name=Lexikon&op=content&tid=31">2 ] [ href="module.php?name=Lexikon&op=content&tid=43">386 ] [ href="module.php?name=Lexikon&op=content&tid=60">486 ] [ href="module.php?name=Lexikon&op=content&tid=61">486SX ] [ href="module.php?name=Lexikon&op=content&tid=104">80386 ] [ href="module.php?name=Lexikon&op=content&tid=105">8048 ] [ href="module.php?name=Lexikon&op=content&tid=106">80486 ] [ href="module.php?name=Lexikon&op=content&tid=112">80x86 ] [ href="module.php?name=Lexikon&op=content&tid=134">= ] [ href="module.php?name=Lexikon&op=content&tid=261">AD ] [ href="module.php?name=Lexikon&op=content&tid=396">ag ] [ href="module.php?name=Lexikon&op=content&tid=411">ai ] [ href="module.php?name=Lexikon&op=content&tid=433">al ] [ href="module.php?name=Lexikon&op=content&tid=531">alt ] [ href="module.php?name=Lexikon&op=content&tid=543">AM ] [ href="module.php?name=Lexikon&op=content&tid=544">am ] [ href="module.php?name=Lexikon&op=content&tid=554">AMD ] [ href="module.php?name=Lexikon&op=content&tid=592">an ] [ href="module.php?name=Lexikon&op=content&tid=740">ar ] [ href="module.php?name=Lexikon&op=content&tid=743">arc ] [ href="module.php?name=Lexikon&op=content&tid=800">as ] [ href="module.php?name=Lexikon&op=content&tid=894">at ] [ href="module.php?name=Lexikon&op=content&tid=1025">B ] [ href="module.php?name=Lexikon&op=content&tid=1026">b ] [ href="module.php?name=Lexikon&op=content&tid=1181">be ] [ href="module.php?name=Lexikon&op=content&tid=1672">bus ] [ href="module.php?name=Lexikon&op=content&tid=1695">by ] [ href="module.php?name=Lexikon&op=content&tid=1708">C ] [ href="module.php?name=Lexikon&op=content&tid=1723">CA ] [ href="module.php?name=Lexikon&op=content&tid=1724">ca ] [ href="module.php?name=Lexikon&op=content&tid=1726">cache ] [ href="module.php?name=Lexikon&op=content&tid=1739">CAD ] [ href="module.php?name=Lexikon&op=content&tid=1863">cat ] [ href="module.php?name=Lexikon&op=content&tid=1896">cc ] [ href="module.php?name=Lexikon&op=content&tid=2000">Ch ] [ href="module.php?name=Lexikon&op=content&tid=2001">ch ] [ href="module.php?name=Lexikon&op=content&tid=2069">chip ] [ href="module.php?name=Lexikon&op=content&tid=2076">Chips & Technologies ] [ href="module.php?name=Lexikon&op=content&tid=2099">ci ] [ href="module.php?name=Lexikon&op=content&tid=2121">circuit ] [ href="module.php?name=Lexikon&op=content&tid=2127">CIS ] [ href="module.php?name=Lexikon&op=content&tid=2128">CISC ] [ href="module.php?name=Lexikon&op=content&tid=2136">ck ] [ href="module.php?name=Lexikon&op=content&tid=2138">cl ] [ href="module.php?name=Lexikon&op=content&tid=2188">clock ] [ href="module.php?name=Lexikon&op=content&tid=2189">clock rate ] [ href="module.php?name=Lexikon&op=content&tid=2247">co ] [ href="module.php?name=Lexikon&op=content&tid=2330">com ] [ href="module.php?name=Lexikon&op=content&tid=2545">con ] [ href="module.php?name=Lexikon&op=content&tid=2606">cons ] [ href="module.php?name=Lexikon&op=content&tid=2791">cr ] [ href="module.php?name=Lexikon&op=content&tid=2815">crippleware ] [ href="module.php?name=Lexikon&op=content&tid=2900">cu ] [ href="module.php?name=Lexikon&op=content&tid=2942">Cy486SLC ] [ href="module.php?name=Lexikon&op=content&tid=2973">Cyrix ] [ href="module.php?name=Lexikon&op=content&tid=2976">D ] [ href="module.php?name=Lexikon&op=content&tid=3006">data ] [ href="module.php?name=Lexikon&op=content&tid=3151">de ] [ href="module.php?name=Lexikon&op=content&tid=3177">dec ] [ href="module.php?name=Lexikon&op=content&tid=3371">diff ] [ href="module.php?name=Lexikon&op=content&tid=3436">ding ] [ href="module.php?name=Lexikon&op=content&tid=3565">do ] [ href="module.php?name=Lexikon&op=content&tid=3752">du ] [ href="module.php?name=Lexikon&op=content&tid=3790">DX4 ] [ href="module.php?name=Lexikon&op=content&tid=3834">E ] [ href="module.php?name=Lexikon&op=content&tid=3865">ec ] [ href="module.php?name=Lexikon&op=content&tid=3896">ed ] [ href="module.php?name=Lexikon&op=content&tid=3929">ee ] [ href="module.php?name=Lexikon&op=content&tid=4082">engine ] [ href="module.php?name=Lexikon&op=content&tid=4148">er ] [ href="module.php?name=Lexikon&op=content&tid=4150">era ] [ href="module.php?name=Lexikon&op=content&tid=4171">es ] [ href="module.php?name=Lexikon&op=content&tid=4199">et ] [ href="module.php?name=Lexikon&op=content&tid=4497">fi ] [ href="module.php?name=Lexikon&op=content&tid=4520">file ] [ href="module.php?name=Lexikon&op=content&tid=4595">fix ] [ href="module.php?name=Lexikon&op=content&tid=4655">floating-point ] [ href="module.php?name=Lexikon&op=content&tid=4700">fo ] [ href="module.php?name=Lexikon&op=content&tid=4727">for ] [ href="module.php?name=Lexikon&op=content&tid=4814">FP ] [ href="module.php?name=Lexikon&op=content&tid=4825">FPU ] [ href="module.php?name=Lexikon&op=content&tid=5057">ge ] [ href="module.php?name=Lexikon&op=content&tid=5134">gh ] [ href="module.php?name=Lexikon&op=content&tid=5141">gi ] [ href="module.php?name=Lexikon&op=content&tid=5434">h ] [ href="module.php?name=Lexikon&op=content&tid=5540">hat ] [ href="module.php?name=Lexikon&op=content&tid=5681">hn ] [ href="module.php?name=Lexikon&op=content&tid=5768">hr ] [ href="module.php?name=Lexikon&op=content&tid=5779">ht ] [ href="module.php?name=Lexikon&op=content&tid=5851">i486 ] [ href="module.php?name=Lexikon&op=content&tid=5868">IBM ] [ href="module.php?name=Lexikon&op=content&tid=5931">id ] [ href="module.php?name=Lexikon&op=content&tid=5956">ie ] [ href="module.php?name=Lexikon&op=content&tid=5986">iff ] [ href="module.php?name=Lexikon&op=content&tid=6013">il ] [ href="module.php?name=Lexikon&op=content&tid=6064">in ] [ href="module.php?name=Lexikon&op=content&tid=6068">inc ] [ href="module.php?name=Lexikon&op=content&tid=6070">include ] [ href="module.php?name=Lexikon&op=content&tid=6190">instruction set ] [ href="module.php?name=Lexikon&op=content&tid=6194">int ] [ href="module.php?name=Lexikon&op=content&tid=6217">Intel 486DX ] [ href="module.php?name=Lexikon&op=content&tid=6218">Intel 486SX ] [ href="module.php?name=Lexikon&op=content&tid=6224">Intel 80386 ] [ href="module.php?name=Lexikon&op=content&tid=6234">Intel 80x86 ] [ href="module.php?name=Lexikon&op=content&tid=6274">interface ] [ href="module.php?name=Lexikon&op=content&tid=6413">io ] [ href="module.php?name=Lexikon&op=content&tid=6449">ir ] [ href="module.php?name=Lexikon&op=content&tid=6481">IS ] [ href="module.php?name=Lexikon&op=content&tid=6482">is ] [ href="module.php?name=Lexikon&op=content&tid=6558">it ] [ href="module.php?name=Lexikon&op=content&tid=6822">ki ] [ href="module.php?name=Lexikon&op=content&tid=6918">la ] [ href="module.php?name=Lexikon&op=content&tid=7023">ld ] [ href="module.php?name=Lexikon&op=content&tid=7091">Lex ] [ href="module.php?name=Lexikon&op=content&tid=7107">li ] [ href="module.php?name=Lexikon&op=content&tid=7410">lt ] [ href="module.php?name=Lexikon&op=content&tid=7415">lu ] [ href="module.php?name=Lexikon&op=content&tid=7441">ly ] [ href="module.php?name=Lexikon&op=content&tid=7457">M ] [ href="module.php?name=Lexikon&op=content&tid=7463">ma ] [ href="module.php?name=Lexikon&op=content&tid=7582">man ] [ href="module.php?name=Lexikon&op=content&tid=7700">MD ] [ href="module.php?name=Lexikon&op=content&tid=7837">MHz ] [ href="module.php?name=Lexikon&op=content&tid=7848">micro ] [ href="module.php?name=Lexikon&op=content&tid=7880">microprocessor ] [ href="module.php?name=Lexikon&op=content&tid=7932">mil ] [ href="module.php?name=Lexikon&op=content&tid=8019">mm ] [ href="module.php?name=Lexikon&op=content&tid=8032">mo ] [ href="module.php?name=Lexikon&op=content&tid=8040">mod ] [ href="module.php?name=Lexikon&op=content&tid=8079">module ] [ href="module.php?name=Lexikon&op=content&tid=8167">mp ] [ href="module.php?name=Lexikon&op=content&tid=8228">ms ] [ href="module.php?name=Lexikon&op=content&tid=8378">my ] [ href="module.php?name=Lexikon&op=content&tid=8384">N ] [ href="module.php?name=Lexikon&op=content&tid=8386">na ] [ href="module.php?name=Lexikon&op=content&tid=8460">nc ] [ href="module.php?name=Lexikon&op=content&tid=8472">ne ] [ href="module.php?name=Lexikon&op=content&tid=8627">ng ] [ href="module.php?name=Lexikon&op=content&tid=8630">ni ] [ href="module.php?name=Lexikon&op=content&tid=8675">no ] [ href="module.php?name=Lexikon&op=content&tid=8760">ns ] [ href="module.php?name=Lexikon&op=content&tid=8820">O ] [ href="module.php?name=Lexikon&op=content&tid=8964">om ] [ href="module.php?name=Lexikon&op=content&tid=9014">op ] [ href="module.php?name=Lexikon&op=content&tid=9093">optimise ] [ href="module.php?name=Lexikon&op=content&tid=9097">option ] [ href="module.php?name=Lexikon&op=content&tid=9204">pa ] [ href="module.php?name=Lexikon&op=content&tid=9457">pe ] [ href="module.php?name=Lexikon&op=content&tid=9478">Pentium ] [ href="module.php?name=Lexikon&op=content&tid=9494">perf ] [ href="module.php?name=Lexikon&op=content&tid=9550">ph ] [ href="module.php?name=Lexikon&op=content&tid=9651">pl ] [ href="module.php?name=Lexikon&op=content&tid=9762">point ] [ href="module.php?name=Lexikon&op=content&tid=9908">pr ] [ href="module.php?name=Lexikon&op=content&tid=9920">predecessor ] [ href="module.php?name=Lexikon&op=content&tid=9995">process ] [ href="module.php?name=Lexikon&op=content&tid=10001">processor ] [ href="module.php?name=Lexikon&op=content&tid=10144">pt ] [ href="module.php?name=Lexikon&op=content&tid=10253">query ] [ href="module.php?name=Lexikon&op=content&tid=10319">range ] [ href="module.php?name=Lexikon&op=content&tid=10321">RapidCAD ] [ href="module.php?name=Lexikon&op=content&tid=10364">rc ] [ href="module.php?name=Lexikon&op=content&tid=10385">re ] [ href="module.php?name=Lexikon&op=content&tid=10767">ro ] [ href="module.php?name=Lexikon&op=content&tid=10887">ru ] [ href="module.php?name=Lexikon&op=content&tid=10892">run ] [ href="module.php?name=Lexikon&op=content&tid=10918">S ] [ href="module.php?name=Lexikon&op=content&tid=10922">sa ] [ href="module.php?name=Lexikon&op=content&tid=10959">sam ] [ href="module.php?name=Lexikon&op=content&tid=11009">SC ] [ href="module.php?name=Lexikon&op=content&tid=11150">se ] [ href="module.php?name=Lexikon&op=content&tid=11281">set ] [ href="module.php?name=Lexikon&op=content&tid=11376">si ] [ href="module.php?name=Lexikon&op=content&tid=11524">SL ] [ href="module.php?name=Lexikon&op=content&tid=11525">sl ] [ href="module.php?name=Lexikon&op=content&tid=11651">so ] [ href="module.php?name=Lexikon&op=content&tid=11790">spec ] [ href="module.php?name=Lexikon&op=content&tid=11934">st ] [ href="module.php?name=Lexikon&op=content&tid=12109">struct ] [ href="module.php?name=Lexikon&op=content&tid=12133">su ] [ href="module.php?name=Lexikon&op=content&tid=12155">successor ] [ href="module.php?name=Lexikon&op=content&tid=12246">sy ] [ href="module.php?name=Lexikon&op=content&tid=12312">system ] [ href="module.php?name=Lexikon&op=content&tid=12359">T ] [ href="module.php?name=Lexikon&op=content&tid=12588">th ] [ href="module.php?name=Lexikon&op=content&tid=12721">to ] [ href="module.php?name=Lexikon&op=content&tid=12787">tr ] [ href="module.php?name=Lexikon&op=content&tid=12939">tw ] [ href="module.php?name=Lexikon&op=content&tid=12986">ua ] [ href="module.php?name=Lexikon&op=content&tid=13008">ug ] [ href="module.php?name=Lexikon&op=content&tid=13030">um ] [ href="module.php?name=Lexikon&op=content&tid=13146">up ] [ href="module.php?name=Lexikon&op=content&tid=13175">us ] [ href="module.php?name=Lexikon&op=content&tid=13252">va ] [ href="module.php?name=Lexikon&op=content&tid=13274">var ] [ href="module.php?name=Lexikon&op=content&tid=13310">ve ] [ href="module.php?name=Lexikon&op=content&tid=13891">X ] [ href="module.php?name=Lexikon&op=content&tid=13922">x86 ]
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