ASus P5W DH does has PCIE 1.1 or 2 ?

Question

and which video card will work better on my mothebroad ? not going for crossifre ....

Asus 2900XT or Nvidia 8800 GT ?

Answer 1

the only motherboard chipset that supports PCI-E 2.0 is Intel's X38 chipset, which was launched recently as the performance chipset to replace 975X chipset

as for graphic card, take the 8800GT, it will pwn the HD2900XT in gaming