PCI-E 4.0標準制定中 包含外接式PCI-E - 3C
By Charlotte
at 2012-07-13T21:06
at 2012-07-13T21:06
Table of Contents
[link] http://www.xfastest.com/thread-79751-1-1.html
雖然目前 PCI-E 3.0 才剛剛步入正途，尚未得到完全的利用
不過 PCI-SIG 組織表示 PCI-E 4.0 標準已經進入開發階段
據透露，PCI-E 4.0 匯流排的速率是在 PCI-E 3.0 的基礎上再翻一倍
單通道單向傳輸為 16Gb/s
因此 16 通道雙向傳輸的速率在理論上可以達到 512Gb/s 即 64GB/s
另外 PCI-E 4.0 標準還會針對 PCI-E 介面的存放裝置
例如 PCI-E 固態硬碟和 PCI-E RAID 卡等進行優化
盡可能發揮PCI-E匯流排的低延遲優勢
另外 PCI-SIG 組織還透露，新的PCI-E標準將包含有外接式 PCI-E 的規範
他們將這個規範稱之為 PCI-E OCuLink
簡單來說就是類似於英特爾主推的 ThunderBolt 介面
據稱，PCI-E OCuLink 基於 PCI-E 3.0 開發，將採用銅纜作為連接介質
可提供最低 8Gb/s（PCI-E 3.0 x1）、最高 32Gb/s（PCI-E 3.0 x4）的連接速率
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