Can I upgrade my prebuilt alienware aurora?

[Alienwawa]

I bought an alienware aurora quiet some time ago, it has buffed out specs except the GFX card is weak as hell, it's a Nvidia GTX260 and skyrim can hardly handle it. I was thinking of buying an GTX560ti but I am not sure if my computer will be able to handle it or even be compatible by it. I am really no computer expert but I will show as much things a I can to receive the most accurate help, hopefully someone can help me with this issue.

specs
http://screensnapr.com/e/tS0Fwm.png

inside my computer
http://imgur.com/a/qhO3N

Can anyone help me? thanks.

 

[Outlander_04]

you can run even the most powerful graphics card with that processor .

The limit of which graphics card you can use ill be

1/ how much money you have

2/ the wattage on your power supply