davidmail18 wrote:
我有問過顯卡RD人員...(恕刪)
喔 我看懂了... 刪改一下
不過說真的, 搞成 USB 2.0 真的不划算啊..
速度差距真的有點大, 畢竟 USB 沒辦法真的跑滿480M bps, 而pci-e 1x是可以比較接近理論速度的.
看圖說故事, 顯卡是透過 Express Card 34 type 接到 NB.
按照 Express Card 規格書:
USB介面一組
SM Bus傳輸介面一組
PCI-E 1x 介面一組 (相當於 pci-e 1-lane slot)
根據 Vidock4 的說明:
The ViDock 4 is an external ExpressCard to PCI-Express adapter chassis. It connects directly to the ExpressCard slot on your laptop and provides a PCI-Express x16 connection for your video card. You can install a PCI-Express x16 gaming graphics card that requires up to 1 6-pin PCI-E power connector. After you have the video card installed in the ViDock 4 you just connect your monitors to the card and connect the chassis to your laptop.
所以看起來是一個 PCI-E 16x 轉 1x 的轉接卡
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