Author: Dezhi Zhao
Date: 08:07:20 10/15/99
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On October 15, 1999 at 09:12:42, Robert Hyatt wrote: >On October 15, 1999 at 06:20:55, Jeroen van Dorp wrote: > >>Is that so? >>Is a Pentium II @400 3 times faster than a Pentium 133? >>I think it is at least 6 times as fast >>Older systems will have slower ram (e.g. EDO) and lesser RAM installed. >>Also if your using a 33MHz motherboard for your P133 and a 100MHz bus speed for >>your PII@400HMHz (with DIMM)it will exceed that speed . >> >>Jeroen ;-} > > >I would put the difference it 5X, based on lots of testing here, so long as >he means PII at 400 (or PIII). The original pentium pro was (for crafty) >exactly 2.5x faster than a P5/133. The PII/400 is 2x that. I think the diffierence is around 3.4X. PC100 ram and bigger on-chip cache only contribue 14% in my tests with my own program. For Crafty I think the bsf/bsr contribute to the difference another 10%. I believe speed is mainly clockwise for chess program. And level 1 cache is the second important factor. PC 100 ram speeds up very little. So for crafty, I guess the difference would be about 3.9X. Are there any data to support my calculations? Dezhi Zhao
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