轉載：為什麼64位處理器比你想像的重要？

雪茄先生

首石頭 發表於 2013-9-15 11:39
回復 taisiu #14 的帖子

但俾咗幾多RAM落去. 咁靚賣點唔用黎谷機. 事後勢色有變才自誇~但都唔敢正面宣傳推廣.  此無銀吧.

關咩事呀，一早我地4台都報導過啦

cb400

Thank you for sharing !

foureyesboy

回復 hk_harry #18 的帖子

Well, yea.  64-bit OS platform does provide some performance gain, but it still depends on whether the apps are also optimized for 64-bit.  Even today, after years of the introduction of 64-bit to desktop, still a considerably amount of applications are not yet 64-bit.

Also the gain in performance depends largely on the nature of the applications.  If it involves many SIMD operations, the gain will be more obvious.  Otherwise, considering most programs consist largely of boolean logic, the benefit of 64-bit over 32-bit is actually not very much.

Taking the example from the desktop environment, the main decision making of utilizing 64-bit platform or not is still the 4GB address.  Of course there is no harm to start supporting 64-bit as early as possible, but performance-wise there is not much of an excitement genuinely.

首石頭

回復 雞虫大支 #19 的帖子

但當人兜囗兜面問佢D RAM 是否因而改了量,佢又支吾兼夾又唔肯公開數據~自己諗啦. 反正佢D嘢神神秘秘.

首石頭

回復 雞虫大支 #21 的帖子

咁大反應.