Curiouser and curiouser:
Working on nearly the same exponent, 9.7 million, I notice that
our PIII 500 takes only 119.5 million clocks per iteration, whereas
our 733EB requires 124.8 million to do the same.
The 500 has 512K 1/2 speed off-chip cache and runs 128MB of SDRAM, with a 100MHz bus
and was cheap.
The 733 has 256K full-speed on-chip cache and runs 256MB of RDRAM (RAMBUS), 133MHz bus
and was not so cheap.
An Athlon of my acquaintance does all of this in 114.6 million clocks, but that's
another story,
because the Athlon is supposed to decode more instructions per cycle, and generally
ace it
in the floating-point department..
Can anyone explain the Pentium discrepancy?
Best Regards,
Stefanovic
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