I was thinking about pci-e and thought about the time when we will need 32x lanes. I know this is a long way off as we only really utilise around 8 lanes of bandwidth at the moment but think about this.
In its current form the length of the pci-e slot is an indicator of the bandwith provided by the lane. Now correct me if im wrong but a 32x lane would be nearly twice as long as a 16x lane and would probably fill the entire length of the motherboard.
Looking at the jump from AGP v1, v2 and v3 this will happen in around 2-3 years. Is a 32x long lane feasible for a graphics card (never mind 2 for sli) and what about 64x lanes when required?
I personally cant see the current pci-e architecture lasting anywhere near as long as AGP. They surely must have to change the bus speed of the lanes to get the gains required.
What do you guys think?


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