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USB 3.0 跟 SATA 6G 究~竟~有多快

Filed under: 電腦周邊, 儲存裝置


李組長眉頭一皺,發覺案情並不單純。因為桌上那張華碩新主機板 P7P55D-E Premium 一口氣同時將 USB 3.0 以及 SATA 6G 這兩種號稱效能好幾倍跳的規格全都內建在裡頭,那麼...不好好拿來測速一下,怎麼說的過去呢。只不過李組長平常跑的地方不是警察局就是作案地點,根本沒時間去光華商場跟店員打屁聊天,因此該如何才能借到其它的零件來寫測速文呢,這問題深深困擾著李組長。

幸好,和李組長有同樣想法的人還不少,就在李組長還苦思該如何借到零件的同時,好消息傳來了。原來國外的友站 HotHardware 跟 PC Perspective 早已不約而同地將這項工作搶去做掉,並且撰寫了相當完整的評測報告。而有了這些報告的佐証,李組長終於發現下面的事實:

USB 3.0 的速度真的快,很快,同一顆硬碟的讀寫效能足足可以比採用 USB 2.0 介面時快上 5 到 6 倍。相較之下 SATA 6G 就沒那麼炫了,以 Seagate Barracuda XT SATA 6G 分別插在 3G 跟 6G 的介面上測試的結果,除了小檔案的讀寫速度有較明顯的變快外( 歸功於 Marvell SATA 6G 控制器所採取的快取策略不同的緣故 ),大檔案的讀寫效能倒是沒有太明顯的差異,不過會有這結果或許是因為硬碟內部的傳輸已經到達瓶頸了吧。

所以李組長的結論就是,這兩個新介面都還不錯。假如各位是速度派的玩家又正好需要採購主機板,那麼 P7P55D-E Premium 真的不錯。然而若各位並不想換主機板,而想要用比較便宜的方式為自己的電腦加掛 USB 3.0 跟 SATA 6G,那麼建議售價 30 美元( 約新台幣 976 元 )的 ASUS US36 擴充卡也是不錯的選擇唷。

Read - HotHardware
Read - PC Perspective
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