PCIE x16 slots in Asus P8Z77-M

Greeting all,

I'm planning to buy the P8Z77-M motherboard, Sound Blaster Recon3D PCIe x1 and graphics card Asus 660Ti.

The motherboard has only one PCIe x16 3rd Gen, one PCIe x16 2nd Gen and one PCIe x1.

http://my.asus.com/Motherboards/Intel_Socket_1155/P8Z77...

The graphics card takes two slots, which means the PCIe x1 will be blocked.

So the only solution is to put the graphics card in the PCIe x16 3rd Gen slot, and the sound card in the PCIe x16 2nd Gen.


so far, what I know is that if you put two graphics cards in two PCIe x16 slots, they will run in x8 speed.


my question is:
Would my graphics card run in x8 speed if I put the sound card in the second PCIe x16 slot??

I appreciate your helps guys...