究竟32定64 bit 比較速度快同效能強?

點解有人話64比32慢?

呢個問題有問人好多
但好似咁耐未有咩REPORT 出過
但大部份人都話 64 係慢過32

答案自己去搵LA....

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只因無知, 所以亂 up

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原帖由 tunster 於 2009-10-26 19:50 發表
只因無知, 所以亂 up

咁即係64快好多 ?

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原帖由 lopez13 於 2009-10-27 11:58 發表

咁即係64快好多 ?

logically 如果一樣行 32bit 軟件應該係無分別‚ 如果 64bit 無得比添啦 (32bit os 開都無得開)

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就算某d program快d﹐都唔會分別好大﹐not to mention 32bit OS始終有RAM限制。

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64 bits windows cannot run 32 bit program directly. M$ used a technique call WOW (Windows on Windows) which is an 32 bits emulation over 64 bits windows. As a result, there must be some overhead although it is not significant

For native 64 bits software, the efficiency must be higher, especially the memory intesinve software. However, at the current moment, there only limited number of 64 bits software( Adobe CS4, Office 2010...). Moreover, the drivers for 64 bits Windows must be digitally signed, making vendors not willing to support 64 bit Windows.

64 bits must the the furture move, but it still need some time to become popular.

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即係一般用途32同64無分別?

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如果你係唔夠多RAM, 64真係慢過32. 例如得2GB就係了.

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最主要係, 64-bit 去載一個 number 比 32-bit 用多一倍空間... 慢嘅最大原凶唔係 OS 問題, 而係你粒 CPU, 例如有 8MB L2 cache, 用 32-bit 同 64-bit, 載嘅嘢就少咗一半... 即係 32-bit 見倒 8MB, 64-bit 感覺上就只係剩低 4MB...

你買粒 U 咁貴, 都係為咗佢有大啲啲嘅 cache...

所以 Photoshop 都有 32-bit 同 64-bit 你擇, 如果你唔係要修改好大張相, 行 32-bit 一定有著數... 不過 OS 就上 64-bit, 你自由度大啲嘛...

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