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原帖由 CD真够烂 于 2006-6-5 17:22 发表
当初PR值刚面世时用在了Xp上,PR值与频率值相同时AlthonXp性能相对P4全面占优。1600+综合性能不会输给P4 1.7G
I饭要是认为PR值是和P4比,那倒是高估主子了。
不懂的话就多去找wikipedia看看吧,不过国内不知道能不能上 :lol:
其实我也不大懂,不过看完就懂了 :lol:
The PR rating system was developed by AMD in the mid-1990s as a method of comparing their x86 processors to those of rival Intel.
A response to Intel's marketing
The continuation of this practice, despite higher performance per clock, led consumers to conclude that AMD's Athlon XP processors, because they had much slower clock speeds than Intel's Pentium 4 processors, were inferior to Intel's Pentium 4 microprocessors. In reality, on a clock-for-clock basis, the Athlon XP microprocessor was superior to the Pentium 4 on a number of benchmarks. An Athlon XP with a 2 GHz clock would easily outperform a 2 GHz Pentium 4 on most benchmarks.
In reaction to the consumers' misconception, AMD reinstalled the PR rating to compare their Athlon XP microprocessors. AMD made sure to advertise the PR number of its microprocessors rather than their raw clock speeds believing that consumers would compare the PR of AMD's processors to the clock speed of Intel's processors. The PR number was originally believed to show the clock speed (in megahertz) of an equivalent Pentium 4 processor, but this was never confirmed by AMD. As part of its marketing, AMD even made sure that motherboard manufacturers conspicuously showed the PR number of the microprocessor in the motherboards' POST and not include the processors' clock speeds anywhere except within the BIOS. |
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