PCI-SIG has released the next generation specification for PCI Express. The new PCIe Express 3.0 specification delivers double the bandwidth of the superseded PCIe Express 2.0 specification. This increase in bandwidth is delivered by a new 128b/130b encoding scheme and a data rate of 8 gigtransfers per second (GT/s). The specification also retains backwards compatibility with the previous PCIe Express 2.O architecture.
