🚀 go-pugleaf

In article <1992Jul29.113033.12000@monu6.cc.monash.edu.au> kevinlu@yoyo.cc.monash.edu.au (Kevin Lu) writes:
>: >
>: >  I beleive he meant that it is acceptable to take the cut in CPU power
>: >(whatever it might be *cough*),  and purchase some extra RAM with the money
>: >you would have had to spend on the 486SX/25.  I did it myself and I am
>: >happy with my AMD 386/40.  Memory is memory... aye?!
>: >
>: >-Rob
>: >reward@eos.ncsu.edu [.sig on vacation also]
>: 
>: Cut in CPU power?  From My understanding... a 486 is a 386 with an onboard
>: 387 and cache.  A 486sx is a 486 that has the 387 disabled, leaving you
>: with what is basically a 386 with a cache.
>: Now, this means he's comparing a 386 40Mhz with a 386 25Mhz with a cache.
>: I leave the decision as to which is better up to y'all...
>
>
>Thats not right is it?
>
>The 486 has different timings (via clock cycles) and there for runs faster
>(not by much) than a 386. Also there are some newer functions on the 486
>(albeit partially useless ones). However i would stay away from an SX,
>because if you want the co-pro. part, Don't you have to buy a chip which
>is in fact a '486 which disable your SX chip?
>
>
>   

As far as I know, ALL x87SX chips have their corresponding x87SX chip (including
the 486SX).  And, yes and no on 486 being 386 with 387 and all.  I think that
the architecture of 486 and 386 are a bit different.  For instance, I think
the 486's use 64-bit instruction set(?), this means faster 32-bit integer
calculations.  This implies that 486SX/25 will run faster than 386/33 in most
cases.  I guess
my last point would depend on how much faster is 64-bit calculation compared
to 32-bit.  I used PMFract, Fractint for OS/2, under OS/2 2.0.  The 32-bit
version of PMFract worked about 1.5 times faster than the 16-bit version
regardless of what I was doing in the background or forground sessions.



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How long do those Energizers last anyway?
                                          I don't know, I have rechargables.
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Young  --:#)  ychung@descartes.waterloo.edu
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