Thoroughbred功耗迷思-快科技-科技改变生活

Thoroughbred功耗迷思

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2002年02月27日 10:36
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在上周Zdnet.de的一篇报道透漏了Athlon XPPalomino和Thoroughbred的功耗，人们对于Thoroughbred的功耗产生了怀疑，为什么从Palomino到Thoroughbred，功耗变化如此之小？Intel的工程师则评论说实际上AMD的.18微米工艺实际上是.18和.13混合技术，Intel在实验室对AMD的.18微米处理器仔细研究认为，AMD的晶体管技术似乎具有和.13微米相似的工艺技术。

拿Athlon XP 2000+来说，同频的Throughbred和Palomino的功耗分别是:

Thoroughbred: 63.8 watts

Palomino: 70 watts

我们可以发现，功耗的减少不超过10%。

反观Intel的CPU，老Willamette内核和Northowood相比:

Northwood: 52.4

Willamette: 75.3

在同一速度，功耗减少了约30%。

但是不要忘记，Palomino功耗比Tbird少20%，而Thoroughbred又比Palomino少10%，因此总共也是大约30%，和Intel相同。

那么功耗到底说明了什么呢？它只能说明Thoroughtbred性能不会比当前的Palomino性能高多少，也许到Barton(.13,SOI工艺)性能才会有真正的飞跃。

新闻来源:

Overclockers.com

文章出处：www.overclockers.com

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