Guys if i buy an asus g75vw with 670m can i later change it to this card ASUS GeForce GTX 680-2GD5 2GB DDR5 VGA/DVI/HDMI/DisplayPort DX11 GPU Tweak Utilities PCI-Express 3.0 Graphics Card GTX680-2GD5 ?

Guys if I buy an asus g75 with the nvidia 660m inside would it be possible for me to later change the graphic card to a 680mx?Sincerly,John Feat

For the official graphic cards avaible for the G75VW, I was wondering what advantages the 660M has over the 670M.If you have tried both please tell me your experience.Thanks

I plan to buy this computer http://www.amazon.com/ASUS-G75VW-DS72-17-3-Inch-Laptop-Black/dp/B007R9PWLY/ref=pd_cp__1.Its the G75VW.Technical detailsIntel Core i7-3610QM Processor 2.3GHz16 GB SO-DIMM RAM750GB 7200rpm Hard Drive + 256GB Solid State Driv...

Im looking to buy an asus g75vw but i would like to change the graphics card, does anyone know if the GeForce GTX 680M is compatible with asus g75vw. Im also looking for a site where i can customize and then order the computer. Please help.