The 7800 GT (that was only a PCI Express based part) took 4 pixel pipes (a single pixel quad) and a single vertex pipe off of the GTX model, lowered the clocks and lowered the price. The 7800 GS follows a similar pattern: take 8 pixel pipes (two pixel quads) and 2 vertex pipes off of the GTX model, lower the clocks and lower the price. With lower clocks and fewer pipelines for processing, this obviously means slightly lower performance, but it should still be a big upgrade over anything else available on the AGP side from NVIDIA..



Link: PC Perspective