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jamin
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加入日期: Dec 2002
文章: 1,370
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作者geminiz
關於第二點
我是以前看Toms Hardware測試的印象

翻翻找到了
http://www.tomshardware.com/reviews...arm,3387-5.html

"
In general, our analysis suggests that the ARM-based CPU core is excellent at doing nothing, but starts to require considerably more power during computationally-intensive workloads.
...
The secret of Atom’s power efficiency is simple. The CPU's handicap at idle is overcome under load, when work is actually being performed, and by a more efficient memory subsystem that is...
謝謝你的分享

發問後, 我自己 google 到的參考資料 : https://boinc.berkeley.edu/Thesis_Eastlack_Nov09.pdf

Page 71, Figure 5-4 - BOINC multi-core Dhrystone MIPS/Watt
我原本想知道的 MIPS/Watt

Page 90, Figure 6-11 - Energy used to complete the SETI WU
細節不太懂, 圖看起來, ARM 與 intel x86 每單位運算所需能量, 沒有大幅差異


小小心得, intel 的分支預, cache...等加速功能, 加上製程優勢, 居然可以把差距縮小到這麼近

 
 
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要討論也要找能溝通的, 跟狂吠的狗溝通只是浪費時間. 每日一句 : 很多不等於多數,也不等於少數
舊 2014-02-25, 04:23 PM #42
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