Question about my GPU.......

[Master Chief]

Hi all, I have an Alienware Area 51m 5700 laptop and it sports a 6800 256mb GPU. Anyway, I've been looking everywhere for some info on it and cant really find much about the GPU. I was wondering, can the GPU on this unit be upgraded? I want to upgrade to a 7800 or 7900, but dont know if my unit is capable to upgradeing the GPU and some help or links would be awesome.

 

[IlllI]

if you can, be prepared to spend $$$
i remember reading some people able to upgrade their dell's gpus... for around $400