Sandra Stream Memory Bandwidth
In a test like this, it's always good to start with the memory bandwidth, because it's the major difference between the 4 players. You can see that the platforms equipped with DDR266 are scoring pretty much identically. This gives us a good hint that SiS645 equipped with DDR266 will probably perform pretty much the same as VIA's Apollo P4X266. Once SiS645 is equipped with DDR333 memory however, it is clearly leaving the competition from VIA behind. At the same time, i850 and its dual-channel RDRAM can still not be reached in this benchmark. It's also worth having a look at the mediocre results of i845 with PC133 SDRAM.
i845 is far behind, while SiS645 with DDR333 is not quite able to reach the scores of i850. However, with 97-99% of the i850-scores its coming very close. VIA's Apollo P4X266 is just about able to beat SiS645 with DDR266 memory.