Laptop Upgrade Advice Needed

[undpilot87]

Hey guys I just had a quick question about a friend looking to upgrade his laptop's graphics card. He has an Alienware Mx 15 with an i7 q820: 8 cores @1.73-3.06 and a 5850m graphics card. He was considering putting in a 6970 but he wasn't sure if he would see a noticeable improvement in graphics. What do u guys think?

Also would anyone recommend for him to do it himself? I have taken apart a laptop before and it was a nightmare. I had to remove a lot before I ever got to the mobo. I told him he should pay someone else to do it if he decides to do it. Whats all of your opinion?