The main difference between the two is that the 386SX had a 16-bit data bus, while the 386DX had a full 32-bit data bus. This meant that it took twice as many cycles to transfer data across the bus, and limited the 386SX to a maximum of 16 MB of RAM, although it could still technically page up to 4 GB.
A 386SX processor has 16-bits and 386DX has 32-bits
The 386SX is a 32 bit processor running on a 16 bit bus.
The 386DX is a 32 bit processor running on a 32 bit bus.
Intel has released processor with a variety of bus / memory widths. The 386SX had a 16-bit data width, the 386DX and 486 had a 32-bit bus width, and the Pentium had a 64-bit data bus.
16
386DX
386DX. Was that question from NCO 2009,IX class??
Which processor has a 32-bit Data Bus and a 24-bit Address Bus?
The Research Machines NB300 386sx notebook, released around 1991, was produced by Research Machines Limited (RM), a British company known for its educational technology and computing solutions. The NB300 was part of RM's efforts to provide portable computing options for schools and educational institutions during the early 1990s.
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