Thunderbolt Vs. PCI-E Vs. DisplayPort

It's been said that Thunderbolt is a combination between PCI-E and DisplayPort technologies. That being said, is there a case where Thunderbolt isn't as good as using these other standards, directly? What's the difference between them, and which one is the best?

While the answers to those questions aren't as simple as we would like them to be, LockerGnome's Brandon Wirtz takes a crack at explaining the differences and similarities between these popular standards.

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