OK. Im currently using a mobo with only pci slots. I have another (not installed) mobo which is pretty much equivalent to my current setup. Only difference is that the other mobo has an agp slot. My question is, would the agp's higher bus > the pci's memory size? I realy don't want to swap the Mobo's only to get a marginal increase in speed. here are the details for the cards AGP - R92L-SC3 (model #) PCI - Diamond S9250 PCI 256 DDR Thanx for the Help!