Someone know the mhz speed of one or more of these? It would be VERY helpful 1.PCI 1.0 2.PCI 2.0 3.AGP I wanna buy a NEW video card and i wanna figure which would best help me!

PCI : 33MHz AGP : 66MHz

Some motherboards have 66MHz PCI slots available to. But if you are looking for a video card, you definately want an AGP one, dont worry about PCI.

In every case take a AGP card as the PCI versions are only build for those who don't have AGP and AGP is especially designed for graphic cards. BTW: I think I read somewhere that newer 8x AGP board also can do 100MHz but I'm not totally sure!

PCI 1.0 and 2.0 are both over a decade old and I don't know the difference other than to say it doesn't matter. pci-66, pci-x, pci-express and other pci developments have never caught on en masse although you can always find an article that says the pci 33mhz bus we all use is about to become obsolete. the agp1x bus doubles the pci clock, and agp2x quadruples it, etc. So agp8x runs at 533mhz.

AGP1X An alias for the AGP 1.0 specification, which has a maximum transfer rate of 266M/sec. AGP2X The 2x operation mode of the AGP standard, part of the AGP 2.0 specification. AGP2X has a maximum transfer rate of 533M/sec, using the same 66MHz bus speed. AGP4X The 4x operation mode of the AGP standard, also part of the AGP 2.0 specification. AGP4X has a maximum transfer rate of 1,066M/sec, using the same 66MHz bus speed. AGP8X The 8x operation mode of the AGP standard, part of the AGP 3.0 specification. AGP8X has a maximum transfer rate of 2,133M/sec, using the same 66MHz bus speed. Reference is http://www.grimmerink.com/hardware/c_glos.html