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 …

1989 Intel closed out the 1980s with a record-breaking year fueled by the introduction of three new microprocessors: the 860, 486 and 960.

Jun 29, 2025 · Intel 486 featured much faster bus transfers - 1 CPU cycle as opposed to two or more CPU cycles for the 80386 bus. Floating-point unit was integrated into 80486DX CPUs.

Apr 3, 2024 · The actual difference between the 486 DX and SX has long been a topic of debate. There is a very persistent rumor that Intel had yield problems with the 486, where the processor worked fine …

What does 486 actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Apr 7, 2025 · In this article, we will delve into the architecture of the Intel 486 and explore its features, impact on computing, and legacy. The Intel 486 architecture introduced several enhancements that …

Dec 10, 2023 · Features and specifications of the Intel 80486, an upgrade from the 386 series. Learn about its architecture, variants, and historical impact on computing.

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 …

With the 486, a zero wait state burst read cycle requires five clock cycles to fetch four 32-bit words. The required number of clock cycles increases by one with every wait state introduced in the access.

The Intel 80486 is a higher performance follow-up to the Intel 80386 microprocessor. Introduced in 1989, it is the first tightly pipelined x86 design as well as the first x86 chip to use more than a million …