Author: Robert Hyatt
Date: 10:13:14 11/04/97
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On November 04, 1997 at 09:26:47, Hansjoerg wrote: >It was often said that MChess had run on a slower hardware than some >other programs running on the Pentium II/300. This might be wrong! >The speed difference between K6 and the Intel cpus is program dependent. >The german css magazine (4/97 and 5/97) (also some reader feedback) gave >some information about the speed difference. > >Some results: >Rebel 8 on K6/233 20% faster than on Pentium 2/266 ! >Rebel 8 on K6/233 30% faster than on P200 MMX >Rebel 8 on K6/200 same speed as on Pentium 2/266 >MChess 5 on K6/200 20% faster than on Pentium P200 MMX >Hiarcs 6 on K6/200 15% faster than on Pentium P200 MMX >Genius 5 and Fritz 5 don't take advantage of the AMD K6 >(K6 has nearly same speed as the Pentium MMX with equal frequency) ! I disagree here. The K6 is faster then the P5/MMX at the same clock frequency. For example, I have compared the K6/200 with my P6/200, and they are almost identical. the K6/233 is the expected 15% faster. A P5/233/MMX is not as fast as my P6/200, by at least 10-15%. The two Intel machines are P6/200/256K and P5/233/512K. The P5 even has SDRAM and the new TX chipset that understands how to clock it faster. So the bottom line is the K6 is faster than you give it credit for, *if* you are talking about integer programming only, and are talking about 32 bit programming vs 16 bit programming. > >I think that Fritz and Genius are very well optimized for intel cpus and >so can't take advantage of the special K6 jump prediction unit ?! > >So, may be that the K6/233 is the fastest available cpu for MChess, >(and) the Pentium ||/300 the fastest cpu for Fritz !? >- or the diffrence is very small > >- there are also some other dependencies (ram/cache size, >motherboard,..) > >Hansjoerg
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