[comp.sys.ibm.pc.hardware] what is different between 386DX and 486SX?!!

yhe@dip.eecs.umich.edu (Youda He) (05/01/91)

Can any body tell me what is the difference functionally between 386DX
and 486SX? I know the pin out probabily different, 386 take different
number of clock to exec some instructions, (who cares). Is it a easier
way for AMD to catch up from386DX to 486SX? 

-- Youda

davidsen@sixhub.UUCP (Wm E. Davidsen Jr) (05/07/91)

In article <1991May1.153557.21982@zip.eecs.umich.edu> yhe@dip.eecs.umich.edu (Youda He) writes:
| Can any body tell me what is the difference functionally between 386DX
| and 486SX? I know the pin out probabily different, 386 take different
| number of clock to exec some instructions, (who cares). Is it a easier
                                             ^^^^^^^^^^^

  The 386 takes about 2.6 times as many clocks (depending on how and
what you measure, 2-3 is the range) for typical instructions. Therefore
a 486 at the same clock speed is at least twice as fast as the 386.

  Who cares? Me.
-- 
bill davidsen - davidsen@sixhub.uucp (uunet!crdgw1!sixhub!davidsen)
    sysop *IX BBS and Public Access UNIX
    moderator of comp.binaries.ibm.pc and 80386 mailing list
"Stupidity, like virtue, is its own reward" -me