Apple and their stance on PCIe

[nycmi]

Does Apple consider PCIe to have had its day? I don't understand Apple's stance on this topic, as they haven't included any on the new Mac Pro. I understand that they want to do all expansion externally via Thunderbolt, but more cables potentially means more points of failure doesn't it?

Also wouldn't the PCIe vs Thunderbolt 2 data transfer rate difference mean that some of the Mac Pro's computing power in terms of actual productivity be bottle necked?

Apologies, I'm out of my depth here and I'm just trying to gain more knowledge on the subject.

Cheers,

 

[jav6454]

Well, they are giving you two GPUs at full PCIe 3.0 speeds. I don't see how Apple doesn't embrace it.

Also, more to the point, the Mac Pro is not intended to be customizeable, that much clear is left after the radical design change it went through. So not having 3 or more PCIe slots, that may go on unused by a vast majority of users, they just gave what was needed.