ITE 221 Chapter 6 PCIe standards

I decided to look into the different PCI versions. In my searching, I found that the newest version is PCIe 3.0.  Originally, I found the PCI-SIG website and was going to report on that. Unfortunately, all the documents are in a members-only status, and it costs $3000 a year to join.  I didn’t want to pay that and I’m guessing that you don’t want to pay that either.  Instead, I found a vendor website that talks about the differences between PCIe 3.0 and PCIe 2.0.   All the PCIe standards are backward compatible. The changes allow for faster data throughput to the system host board. The website includes the specs for the base clock rate, the Data Rate, the total bandwidth, and the data transfer rate. One interesting note is that PCIe 3.0 uses the same interface speed as PCIe 2.0, but has twice the communication speed of PCIe 2.0 due to various architectural and protocol management improvements.  You can view the website at http://www.trentontechnology.com/support-center/technical-information/resources/163-trenton-technology-pci-express-3-pcie-2