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Intel 80486

Intel 80486 ili samo i486 procesor je iz serije x86. 32-bitan je procesor kao i Intel 80386. Predstavljen je 1989. Prvi je procesor s cjevovodima. Također je i prvi procesor koji ima više od milijun tranzistora, točnije 1.3 milijuna tranzistora.

50 MHz 80486 dostizao je 50 MIPSa (u početku 41 milijun instrukcija u sekundi). Zadnji je procesor čiji naziv započinje prefiksom (80)486 jer nakon njega Intel novu seriju x86 procesora naziva Pentium. Razvio ga je Pat Gelsinger.

Modeli

  • i486DX — Originalni čip bez dupliranja takta.
  • i486DX-S — SL poboljšani 486DX
  • i486DXL — 486DX sa SMM (System Management Mode) i štednjom energije.
  • i486SX — i486DX bez FPU
  • i486SX-S — SL poboljšani 486SX
  • i486SXL — 486SX sa SMM (System Management Mode)i štednjom energije.
  • i486DX2 — dvostruk unutarnji takt procesora s obzirom na vanjsku sabirnicu.
  • i486SX2 — i486DX2 bez FPUa.
  • i486SL — i486DX sa smanjenom potrošnjom, za prijenosnike.
  • i486SL-NM — i486SL temleljen na i486SX
  • i487SX — sličan i486DX
  • i486 OverDrive — i486SX, i486SX2, i486DX2 ili i486DX4. Radio kao i i487SX kad se ubacio u Overdrive utor.
Model Max takt clock Voltage L1-Cache Predstavljen
i486DX (P4) 20,25,33 MHz; 50 MHz 5V 8 KB WT travanj 1989; travanj 1989; svibanj 1990; lipanj 1991
i486SL 20,25,33 MHz 5V or 3.3V 8 KB WT studeni 1992
i486DXL ? ? 8 KB WT ?
i486SX (P23) 16,20,25 MHz (33 MHz) 5V 8 KB WT rujan 1991 (rujan 1992)
i486DX2 (P24) 40/20, 50/25 MHz (66/33 MHz) 5V 8 KB WT ožujak 1992 (kolovoz 1992)
i486DX-S (P4S) 33 MHz; 50 MHz 5V or 3.3V 8 KB WT lipanj 1993
i486DX2-S (P24S) 40/20, 50/25 MHz (66/33 MHz) 5V or 3.3V 8 KB WT lipanj 1993
i486SX-S (P23S) 25,33 MHz 5V or 3.3V 8 KB WT lipanj 1993
i486SXL ? ? 8 KB WT ?
i486SX2 50/25, 66/33 MHz 5V 8 KB WT ožujak 1994
IntelDX4 (P24C) 75/25, 100/33 MHz 3.3V 16 KB WT ožujak 1994
IntelDX4WB 100/33 MHz 3.3V 16 KB WB listopad 1994
i486DX2WB (P24D) 50/25, 66/33 MHz 5V 8 KB WB listopad 1994
i486DX2 (P24LM) 90/30 MHz; 100/33 MHz 2.5-2.9V 8 KB WT 1994

Vanjske poveznice

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