PCI-E 3.0 Spec Published, Double the Speed

USB 3.0 has been getting most of the attention in the computer world these days, but did you know that PCI Express standard is making the jump to 3.0 as well? PCI-SIG (special interest group for PCI Express), published the PCI-E 3.0 specifications late last week showcasing it as a low-cost, higher-performance I/O tech that includes a new 128b/130b encoding scheme and data rates of 8 GT/s (gigatransfers per second). All that is simply put, is twice the bandwidth of the current PCI-E 2.0 spec.

“Each new version of the PCI-E spec has doubled the bandwidth of the prior generation,” said Nathan Brookwood, research fellow at Insight 64. “The latest group of PCI-E architects and designers drove the standard forward while maintaining complete backward compatibility for Gen 1 and Gen 2 devices. Rarely has a standard advanced so non-disruptively through three major evolutionary cycles. The ability to pull this off demonstrates not only the ingenuity of the Gen 3 developers, but also the insight of those who defined the earlier versions in such an extensible manner.”

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