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总结:
The diagram shows very well that CPUs with Core micro-architecture can process more instructions per clock cycle than K8 processors. That is why Athlon 64 X2 should work at about 20% higher frequency in order to catch up with Core 2 Dup E4000 or Pentium E2000 performance.(这就是为什么A64 X2必须拥有20%的频率优势才能提供和E4000/E2000一样的性能的原因)
And in order to compete against Wolfdale, AMD K8 processors should run at 40% faster frequency(为了和 Wolfdale竞争,AMD A64 X2处理器必须提供比同档次Wolfdale高40%的频率), which is simply impossible today. That is why the today’s Athlon 64 X2 simply cannot compete against new dual-core Core 2 Duo E8000 processors at all.
In fact we have already shared all the conclusions that can be made basing on the results obtained during this test session. So, now we will simply sum everything up stressing the most important things.
So, new Intel Core 2 Duo E8000 processors based on 45nm Penryn cores do not have any worthy competitors at this time. They are considerably faster than Core 2 Duo with smaller model numbers and outperform the top AMD Athlon 64 X2 CPUs with overwhelming advantage. Add here their fantastically low power consumption and pretty democratic official pricing and Core 2 Duo E8000 will turn into a potential market hit. It is especially true for Core 2 Duo E8200 and E8400 models.
Only retailers can cast a shadow over this rosy situation, because they keep the prices for these promising models at a pretty high level since the market hasn’t been saturated with them just yet. However, this problem should very soon get resolved.
As for the top Athlon 64 X2 processors, they turned out seriously overpriced after the launch of the new Core 2 Duo E8200. Today they can only compete against Core 2 Duo E4000 and Pentium E2000. Moreover, we can check out how reasonable AMD’s price policy actually is with a simple empirical rule: for AMD Athlon 64 X2 processor to perform as fast as a Core 2 Duo E4000 or Pentium E2000, it should run at about 20% higher clock speed.
It means that from the performance standpoint AMD Athlon 64 X2 6000+ should cost as much as Core 2 Duo E4600, and Athlon 64 X2 5000+ shouldn’t be priced higher than Pentium E2200.[这意味着,从性能价格比角度来讲,X26000+的价格应该要和E4600持平,而X2 5000+的价格也不应该高过E2200(这样才能保持相同的性价比)] Only in this case the dual-core processors pricing would be considered fair and reasonable. Moreover, we will have to disregard the power consumption rates in this case, because regular Athlon 64 X2 cannot be considered economical.
So, the results of our today’s dual-core processor shoot-out indicate clearly that Intel processors win the “Best Buy” title in every single price segment.(所以,我们的测试结果,表明了现在Intel的双核心处理器在任何价位都赢得了“最值得购买”的称号) And it will remain this way until AMD reduces the prices on its Athlon 64 X2, which keep rapidly losing their appeal. The situation may also change if they launch revised triple-core and dual-core processors on Phenom-like architecture, whiave a chance of become more competitive against Core 2 Duo. However, it will hardly happen any time soon.
[ 本帖最后由 Asuka 于 2008-2-2 16:19 编辑 ] |
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