which is best pcie based card or agp card ?

i have 4x agp slot so i cannot install new graphics card because all the latest card are 8x or 16x so what should i do please help me!!!

I have had the same problem before as well. I have a Geforce 6600 PCI-E graphics card, but my motherboard does not accept PCI-E. The easiest thing to do is simply to buy a new computer, with a motherboard that is PCI-E or AGP-X compatible, and use that computer instead.