If I have a Nvidia 6800 graphics card, can I upgrade to Nvidia 8800? Are all graphics cards compatib

I have a Dell XPS 400 with 6800 series and want to replace it with a 8800 series graphics card. Are the slots and stuff the same? How would I know if it would fit or not?

If I have a Nvidia 6800 graphics card, can I upgrade to Nvidia 8800? Are all graphics cards compatible?

8800 cards fit in a 16x pci express slot make you have that

confirm using cpuz

for power supply..... most dells use a non-standard power supply to prevent users from upgrading....(to buy new stuff from them)... but check to be sure...

and if you are getting a new powersupply... get one that is 80%+ efficiency..

If I have a Nvidia 6800 graphics card, can I upgrade to Nvidia 8800? Are all graphics cards compatible?

Well, according to Dell, it seems the Dell XPS 400 is a PCI-E slot one. So this means yeah, the GeForce8800GT will fit in there.

Lastly though, make sure your power supply can take the video card. The GeForce 8800 is a power hungry video card. I suggest at least a 500W power supply for that.