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Chuckaluphagus
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Posts: 658
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Location: Boston area, MA

Re: 80387 math coprocessors

Tue Apr 18, 2017 3:40 pm

setaG_lliB wrote:
bthylafh wrote:
See? That's how you tell someone they're wrong without being a pompous ass.

I really, really don't see how he's being a pompous ass. You seem to be a little on the touchy side though.

Seconded. I've found Glorious to be confrontational before, but here I thought he was being civil and informative in his argument.
 
Greyguy 1948
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Re: 80387 math coprocessors

Wed Apr 19, 2017 9:31 am

Greyguy 1948 wrote:
http://performance.netlib.org/performance/html/new.spec.cfp92.col0.html
Some results in floating point:
Pentium Pro = 283 at 200 MHz
Pentium = 120 at 133 MHz
486 DX4 = 27 at 100 MHz
486 DX2 = 19 at 66 MHz
68040 = 13 at 33 MHz


Yes 68040 was not good enough for Apple, Motorola and IBM. For Power Mac the alternatives were:
PowerPC 601=76 at 67 MHz or 88 at 75 MHz
Power PC 603=55 at 67 MHz
Power 604=145 at 133 MHz
Best Motorola 88000-RISC was 88110=62 at 50 MHz

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