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Intel 80486DX4
From Wikipedia, the free encyclopedia
The Intel i486DX4 is a clock-tripled i486 microprocessor. Intel named it deceptively during litigation with AMD over trademarks. The product was officially named the DX4, but OEMs continued using the i486 naming convention.
Intel produced i486DX4s with two clock speed steppings: A 75 MHz version (3x 25 MHz multiplier) and a 100 MHz version (usually 3x 33.3 MHz, but sometimes 2.5x 40 MHz or 2x 50 MHz). i486 OverDrive editions of the i486DX4 had locked multipliers, and therefore can run only at 3x the external clock-speed.
The 100 MHz model of the processor had an iCOMP rating of 435, whilst the 75 MHz processor had a rating of 319. The i486's improvements over the i386 mean that the entire 486 range has nearly double performance of i386 with the same clock rate.
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| Discontinued | 4004 · 4040 · 8008 · 8080 · 8085 · iAPX 432 · i860 · i960 · 8086 · 8088 · 80186 · 80188 · 80286 · 80386 · 80486 · Pentium · Pentium Pro · Pentium II · Pentium III · Itanium · Pentium Extreme Edition · Pentium D · |
| Current | Pentium 4 · Pentium M · Core · Pentium Dual-Core · Core 2 · Celeron · Xeon · XScale · Itanium 2 |
| Lists | Intel CPU slots and sockets · Intel chipsets · Intel processors · Celeron · Core · Core 2 · Pentium 4 · Pentium D · Pentium Dual-Core · Pentium M · Xeon |
| Italics indicate non-x86 processors | |