Its not alot cheaper and also like someone said the core is slower than pci-e. I can overclock the xl to an xt. Can you unlock the extra 4 pipes?
Look at this:http://techreport.com/reviews/2005q4/geforce-6800gs/index.x?pg=1
Look at this:http://techreport.com/reviews/2005q4/geforce-6800gs/index.x?pg=1