Regarding backward compatibility of PCI-Express 3.0 cards with PCI-E 2.0 slot.

Hi,

I have the ASUS M5A97 R 2.0 AMD motherboard with PCI-E 2.0 Graphics slot. I have a nvidia GT 630 2 GB PCI-E 2.0 Graphics Card.

I saw a good deal with PCI-E 3.0 Gigabyte AMD/ATI GV-R775OC-2GI 2 GB DDR3 Graphics Card.

Is PCI-E 3.0 slot backward compatible with PCI-E 2.0 slot. Will I be able to install the PCI-E 3.0 slot Graphics Card in my PCI-E 2.0 Graphics slot in my ASUS M5A97 R 2.0 AMD motherboard.

Please reply and revert as soon as possible.

Thanks and Regards,
Sriram.