pci-e 2.0 has a faster maximum throughput, but no single video card is faster than the pci-e 1.0 spec.
your mobo does not have pci-e 2.0 slots because it's based on the nforce 600 series chipset.
nforce 700 series chipsets are necessary for nvidia mobos to support pci-e 2.0 (like the asus p5n-d link below).
Hey guys. I have a little hardware question. I am in the process of upgrading to a Core 2 Quad Q6600 with an EVGA GeForce GTX 260. The motherboard I am getting is an ASUS P5N73-AM Motherboard. My question is do most motherboards these days automatically have PCI-e 2.0 hardware? I checked on Wikipedia and it says its recent hardware but the video card requires it. As far as I have seen no motherboard openly says it has a PCI-e 2.0 slot. My motherboard has one PCI-e, and a PCI-e x16 slot. Any thoughts? The rig I bought (barebones) is here:
The stats on NewEgg say the motherboard is PCI-e 2.0 but then in the reviews they say it's not. Will this cost me performance from my videocard that says PCI-e 2.0 under the statistics?