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  Intel A80486DX2-50 [flip chip]   []   []   [hide data]   [close image viewer]  
Comment by Paul Collins (pi314aussie[at]
This chip was the great saviour for OEMs and system builders. Unlike the DX-50, the DX2-50 didn't demand a heatsink for use. Unlike the DX-50, the DX2-50 didn't demand OEMs to build quality advanced 50MHz-throughout M/Boards. Many early VESA VL-BUS add-on cards would mis-behave when the M/Board was running at 50MHz-throughout. By building a system based on a DX2-50, system builders could sell stable reliable 50MHz-CPU-systems that were only 3% to 15% slower in "real-world" apps. than when using same-for-same BIOS and logic M/Boards, built using DX-50 CPUs. Any DX2-50 end-consumer system (with VL-BUS cards) always ran all programs faster than any 33/40MHz end-consumer system using only 16-bit ISA cards. Thus the DX2 -50 was the saviour.
N.B. once the DX2-66 was common, slower 50MHz systems were "always" built with the DX2-50 or (rarely) the SX2-50. The DX-50 systems fell into non-supply except for the vary rare EISA BUS M/boards (they were mostly 50MHz, except for the EISA circuitry, which was still at 33MHz even then).
With Intel supplying the DX2-50 cheaper than it supplied the DX-50, it was one really really great chip.

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Core Frequency:50 MHz
Board Frequency:25 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Circuit Size:0.80
Voltage:5 V
Introduced:March 3, 1992
Manufactured:week 37/1994
L1 Cache:8 KB
CPU Code:i486 DX2
Intel S-Spec: SX808
Package Type:Ceramic
Socket: 1/2/3
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