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.

However, these chips could not match the Intel 486 processors, having only 1 KB of cache memory and no built-in math coprocessor. In 1993, Cyrix released its own Cx486DX and DX2 processors, which were closer in performance to Intel's counterparts.

Mar 3, 2025 · The Intel 486DX2, introduced March 3, 1992, was the first clock-multiplied x86 CPU. It was a clock-doubled version of the earlier 486 CPU. A DX2 ran at speeds of 50 or 66 MHz, using a 25 or 33 MHz front side bus.

Intel 66 MHz CPU: detailed specifications, benchmarks, side by side comparison, pictures and more from CPU-World

Chip: Intel i486 DX2 66 (A80486DX2-66) The Retro Web Support Us Articles. Motherboards BIOS images Chips ... 486 (5V) Package Socket 2 (PGA238) Socket 3 (PGA237) Socket 1 (PGA169) PGA168. Process node 800nm. TDP 5W. Not linked to any boards or cards. Also known as:

Dec 13, 2015 · In early 1992, Intel ran a teaser ad campaign promising wonders to come in the shape of upgrade processors pluggable into the upgrade socket of 486SX systems. In mid-1992, Intel rolled out the OverDrive line. This coincided with the introduction of …

Jan 26, 2013 · Intel announced it would be discontinued by the end of 2007 so this is truly one of the last (Intel) 486s ever made. It is a SX911 &E5V2X version which is an SL Enhance (&E) 5 Volt Mobile (2X) processor.

Chip: Intel i486 DX2 66 (SL Enhanced) (A80486DX2-66) The Retro Web Support Us Articles. Motherboards BIOS images Chips Chipsets ... 486 (5V) Release date. 1989-04. File. Intel i486 data book 240440-001. Logs. Family. 486 (5V) Release date. 1990. File. Intel i486 hardware reference manual. Logs. Family. 486 (5V)

Aug 4, 2008 · The second generation of 486s had a CPU multiplier, since the processor operated faster than the FSB, with DX2 (2x multiplier) and DX4 (3x multiplier) versions.

Jan 24, 2021 · The 486DX series were the complete, full-performance versions of the 486 processor line. Unlike the low-cost 486SX , the DX versions contain an FPU, which significantly speeds up floating-point calculations compared to the earlier 386.