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The Intel 486, officially named i486 and also known as 80486, is a microprocessor introduced in 1989. It is a higher-performance follow-up to the Intel 386 . It represents the fourth generation of binary compatible CPUs following the 8086 of 1978, the Intel 80286 of 1982, and 1985's i386 .
Intel Haswell Core i7-4771 CPU, sitting atop its original packaging that contains an OEM fan-cooled heatsink. This generational list of Intel processors attempts to present all of Intel's processors from the 4-bit 4004 (1971) to the present high-end offerings. Concise technical data is given for each product.
i486 Intel's second generation of 32-bit x86 processors, introduced built-in floating point unit (FPU), 8 KB on-chip L1 cache, and pipelining. Faster per MHz than the 386. Small number of new instructions. P5 original Pentium microprocessors, first x86 processor with super-scalar architecture and branch prediction. P6
Download as PDF; Printable version; ... List of Intel Xeon processors; List of Intel Atom processors; ... Intel 80387; Intel 80387SX; I486; I486 OverDrive;
The 100-MHz model of the processor had an iCOMP rating of 435, while the 75-MHz processor had a rating of 319. IntelDX4 was an OEM-only product, but the DX4 Overdrive could be purchased at a retail store. The IntelDX4 microprocessor is mostly pin-compatible with the i486, but requires a lower 3.3-V supply. Normal i486DX and DX2 processors use a ...
Intel's i486 OverDrive processors are a category of various Intel 80486s that were produced with the designated purpose of being used to upgrade personal computers. The OverDrives typically possessed qualities different from 'standard' i486s with the same speed steppings.
The Intel486 DX2, [1] rumored as 80486DX2 (later rebadged i486DX2), is a CPU produced by Intel that was first introduced in 1992. The i486DX2 was nearly identical to the i486DX, but it had additional clock multiplier circuitry. It was the second CPU chip to use clock doubling, whereby the processor runs two internal logic clock cycles per ...
To achieve this, the processor state is saved in an area of static RAM (SMRAM). In mid-1993, Intel incorporated the SMM feature in all its new 80486 processors and discontinued the SL series. Refer to the respective section of the list of Intel microprocessors for technical details.