引用:
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作者huantang
大家都知道PCI-E從1.1升級到了現在的2.0，不光是頻寬增加了一倍，電源供給也從75W上升至150W∼225W左右
問題來了，我的同事跟我說PCI-E2.0不是為了顯卡而做的，因為GAME的資料量沒那麼大，而是為了一些storage卡，RAID卡這類需要高頻寬的卡
請問他說的對嗎？
我知道現在的遊戲確實用1.1或2.0的規格跑起來是沒什麼差別，但說完全無用也不是很有道理
吧！畢竟PCI-E*16的通道主流也是顯示卡在用的而已阿....
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有些 raid HBA 上面都開始用 dual core IOP 了.
還有, intel 有些北橋, mb 商拉出來 PCIe 16x 對 raid HBA 感冒.
再不改善, PCI-X 64bit 還會活的更久.
當然有些 PCIe scalable/hot-swap 的規格也是要定詳細點.
PCIe 下面的優勢沒幾個看到廠商在實作的,
PCI Express has the following advantages over PCI:
* Serial technology providing scalable performance.
* High bandwidth—Initially, 5-80 gigabits per second (Gbps) peak theoretical bandwidth, depending on the implementation.
* Point-to-point link dedicated to each device, instead of the PCI shared bus.
* Opportunities for lower latency (or delay) in server architectures, because PCI Express provides a more direct connection to the chip set Northbridge (see Note 2) than PCI-X.
* Small connectors and, in many cases, easier implementation for system designers.
* Advanced features—Quality of service (QoS) via isochronous channels for guaranteed bandwidth delivery when required, advanced power management, and native hot plug/hot swap support.