Author: Ed Schröder
Date: 03:53:00 07/10/98
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>Posted by Kim Hvarre on July 10, 1998 at 05:46:37: >In Reply to: Re: Cool AMD 450 Mhz.... posted by Robert Hyatt on July 10, >1998 at 00:35:52: >On July 10, 1998 at 00:35:52, Robert Hyatt wrote: >snipsnip >>Somehow our benchmarks are different. First, I don't see how the Xeon is better >>at context-switching than a normal PII.. that is independent of cache >>completely. however, I have benched my P6/200 vs PII/300's and get 1.41 every >>time I try, using crafty. The first benchmark data I got on a Xeon (source I >>can't reveal) was exactly 2.25X faster than what I am getting on my P6/200. >>This makes sense as crafty has no MMX code whatsoever, so that both processors >>are using the same core technology and relative cache speeds. But note that I >>am a real 32-bit application here with no known-to-be-bad stuff tucked away to >>hurt performance. >>For comparison, the AMD K6 seems a perfect match for the P6/200 when the clocks >>are matched... But the Xeon is clocked faster.. >Qouting from Ed's benchmarkpage: >Pentium PRO 200 1:02 7:38 1:57 0:19 4:56 0:26 >Cyrix 200 1:22 10:12 2:20 0:17 3:45 0:22 >AMD K6 200 0:47 5:50 1:30 0:15 3:45 0:20 >one must (?) conclude, that the Rebelcode has "known-to-be-bad stuffed tucked >away" or? I do not think the better performance of Rebel on AMD in comparison with Intel chips is related to the code. Rebel since version 6 is a normal 32-bit application. From postings from other programmers I noticed that AMD also runs their programs faster than Intel. At the moment AMD by far is simply the best processor around. But the Intel (slot-2) is coming, will it out-perform AMD? Maybe, but certainly not in price. The last I read the chip will cost $4500. I pity Intel :) - Ed - >As You know these figures are average from several users. Perhaps the diff. >comes from the L1 cache - I don't remember where PP differ from K6 in that >respect. >kim
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