Industry Expert Blogs

I’ve been thinking for a while (yes, that explains the burning smell) that we should be covering some of the basics of PCI Express here at ExpressYourself in addition to “just” the new stuff. After reading today’s posting, please let me know in the comments whether this is a good idea or not…

One of the questions I’ve been getting a lot recently is along the lines of “How many lanes and of what ‘generation’ of PCI Express do I need?”

This is a fairly straightforward question, and while coming up with a good first-order estimation is also fairly straightforward, it’s not necessarily obvious in the PCI Express specification. Let’s start with the “raw” data rate, which is fairly easy:

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