Gtx970 to asus p7p55d deluxe mobo?

Solution
The GTX 970 slotted into a PCI-E2.0 (x16) slot will not suffer any performance degradation. You will only start noticing any performance degradation if you were to use an 8-lane PCI-E2.0 slot.

Nothing to worry about at all :)

Here's a graph from techpowerup relating to PCI slot bandwidth.
perfrel.gif

azathoth

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The GTX 970 slotted into a PCI-E2.0 (x16) slot will not suffer any performance degradation. You will only start noticing any performance degradation if you were to use an 8-lane PCI-E2.0 slot.

Nothing to worry about at all :)

Here's a graph from techpowerup relating to PCI slot bandwidth.
perfrel.gif
 
Solution