PCI Express 4 in the Works: Set to Achieve 16Gb/s per Lane
Even though PCI Express 3.0 is still several months away, PCI Express 4.0 is already in the works and some basic specifications of the interconnection technologies are already known. The maximum bandwidth of the fourth generation of PCIe interconnect will be 16GT/s per lane. There will also be a number of new features implemented.
The group, which leads the development, includes AMD, Hewlett-Packard, IBM and Intel. It is reported that the companies are already conducting simulations using chip, channel, packet and socket data. Currently they reportedly expect to achieve speed of at least whopping 16GT/s per lane (which means 256Gb/s [32GB/s] bandwidth for PCI Express x16 slots). The target speed spec is projected to be delivered by the end of 2011.
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