I'm looking at upgrading my graphics card to the gtx 280, or ati's new cards if they're good enough. But all these cards are pci-e 2.0 and my motherboard (gigabyte p35c-ds3r) is pci-e 1.1 . Will the performance then be lower if used in this motherboard and also will there be enough power for the card as I heard that pci-e 2.0 also increases the power through the slot. My psu is fine for the card though (900W Tagan TG900-BZ) so that might make up for it. I don't know.