DX2

(redirected from 486DX2)

DX2

A clock-doubled 486 CPU. The internal speed was doubled without changing the chip's external connections. For example, the 486DX2/66 had an internal speed of 66 MHz, while its external bus from the CPU to RAM ran at 33 MHz. See Speed Doubler and iCOMP.

DX2 CPU       Internal    External
     486DX2/66     66 MHz      33 MHz
     486DX2/50     50 MHz      25 MHz
     486DX/50      50 MHz      50 MHz

     DX4 CPU       Internal    External
     486DX4/75     75 MHz      25 MHz
     486DX4/100    100 MHz     33 MHz
References in periodicals archive ?
Um apoio para o queixo foi utilizado para posicionar a cabeca dos participantes em frente a um monitor Philips Brilliance (21") com resolucao de 1024 x 768 pixels, conectado a um computador 486DX2, 50 MHz, 4Mb RAM, com uma placa de video Diamond Speedstar 24 de 1Mb RAM.
The second, recently announced 83MHz model upgrades existing '486DX-33 and '486DX2 66MHz systems.
Although lesser machines will technically run the software, CPAS would be wise to have at least a 486DX2 66Mhz computer with 16MBs random access memory (RAM) before installing it.
Our electronic classroom houses 54 486SX 25MHz microcomputers for students (each configured with 4MB of RAM, 40MB hard disk and 1028x768 color monitor) plus one 486DX2 66MHz computer for the instructor (with 8MB of RAM, 420MB hard disk, color monitor, SoundBlaster card, CD-ROM drive, stereo amplifier and external speakers).
If you are also operating a CD-ROM, you may want to move up to a 486DX2 Intel processor or better.
I expect the difference between the 486DX2 and cheaper computers to narrow down by 10%, mostly due to a decline in the price of the 486.
In February 1992, Intel released a line of chips called the clock-doubler 486 family (officially referred to as the 486DX2).
MPC-2 MPC-3 PC 95 Consumer System Processor type 486SX Pentium 486DX2 Processor speed 25 MHz 75 MHz 66 MHz RAM 4 MB 8 MB 8 MB Hard disk capacity 160 MB 540 MB not specified Hard disk access time not specified 15 ms not specified CD-ROM transfer rate 300 KB/sec 600 KB/sec 300 KB/sec CD-ROM access time 400 ms 250 msec 400 msec Audio specs 16-bit 16-bit 16-bit 8 note wavetable sampling synthesizer synthesizer recommended Video playback not specified MPEG1 MPEG1 playback socketing Table 1: Specifications for Multimedia Systems MPC-3 does not replace the two former specifications, even though they are absolutely useless today.
I doubt that you would see the potential performance improvements even on the 8 megabyte, 66 MHz 486DX2 category system that is recommended by Microsoft for consumers (as opposed to developers).
The M486DX2/66 Workstation is based on an AT&T 66 MHz 486DX2 system and includes identical features to the M560, except for the processor and hard drive (340 MB as opposed to 540 MB).
One example of a new ZEOS multimedia system is a ZEOS system based on Intel Corporation's 486DX2 66MHz microprocessor.