JackyLaw’s Weblog


USB定FW400??
五月 3, 2009, 9:12 pm
Filed under: Uncategorized

大家都知USB理論值達480Mb/s,即60MB/s

FW400 (IEEE 1394)理論值400Mb/s,即50MB/s

本次測試使用WD 640GB My Book Edition,分別以USB,FW400連接,

使用AJA System Test寫入/讀取128MB的檔案,

Disable file system cache,可以確保不受外來影響,

harddisk_test_usb

harddisk_test_fw400

從以上兩張擷圖可見FW400讀取/寫入都比USB快上5MB/s,

雖然好像差不遠,但是用作BackUp時要寫入隨時達數GB,

時間可以差很遠,買外置硬碟不怕多給數十元買有FW400的硬碟,絕對值得!

(首先要確定自己電腦有此插頭)


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