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標題: Duo and Quad Computers [打印本頁]

作者: 拾實什習窄炸集 時間: 24-5-2009 22:18 標題: Duo and Quad Computers

Is Quad really much better than Dup processor computers ?

作者: mrenvy 時間: 21-6-2009 19:06

Theoretically, yes. In practice, it depends on the OS and the application programming technique.

作者: 拾實什習窄炸集 時間: 23-6-2009 08:19

引用:

原帖由 mrenvy 於 21-6-2009 19:06 發表 Theoretically, yes. In practice, it depends on the OS and the application programming technique.

thanks...

作者: mrenvy 時間: 25-6-2009 10:24

Quoted from Wikipedia,

"The amount of performance gained by the use of a multi-core processor is strongly dependent on the software algorithms and implementation. In particular, the possible gains are limited by the fraction of the software that can be "parallelized" to run on multiple cores simultaneously; this effect is described by Amdahl's law. In the best case, so-called embarrassingly parallel problems may realize speedup factors near the number of cores. Many typical applications, however, do not realize such large speedup factors and thus, the parallelization of software is a significant on-going topic of research."

See: http://en.wikipedia.org/wiki/Multi-core_(computing)

作者: 拾實什習窄炸集 時間: 27-6-2009 03:18

引用:

原帖由 mrenvy 於 25-6-2009 10:24 發表 Quoted from Wikipedia,"The amount of performance gained by the use of a multi-core processor is strongly dependent on the software algorithms and implementation. In particular, the possible gains ar ...

Thanks...Brother.

I also think the speed of hard disk is also important. I think Duo computer with high speed hard disk such as 10000 RPM and 8 GB Ram and 800 MHZ bus compare with QUad computer with only 5400 rpm and 8GB ram amd same 800 mhz bus , which one will preform better ?

作者: mrenvy 時間: 27-6-2009 10:43

引用:

原帖由 拾實什習窄炸集 於 27-6-2009 03:18 發表 Thanks...Brother. I also think the speed of hard disk is also important. I think Duo computer with high speed hard disk such as 10000 RPM and 8 GB Ram and 800 MHZ bus compare with QUad compute ...

What are you doing the computer for? For booting up the OS, a faster hard drive will help for sure.

作者: 聰洛多薩比 時間: 27-6-2009 22:46

如果大家都係同樣規模同開發代號既就會係...

如果用一個原生雙核同一個非原生四核去比較既話就未必...

仲有如果用一個原生雙核同一個只係模擬四核既多線程比既話四核既會略略贏一個馬鼻...

作者: 拾實什習窄炸集 時間: 17-8-2009 01:20

Today who will buy Duo computer rather than Quad computer because the price reasons ?

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