External Laptop Graphic Card Adapter?

Hello Guys  


I Have A Dell Inspiron 15r N5110 And It Has A Integrated Gpu Which Cannot Satisfy My Needs of Gaming So I've Decided To Change The Graphic Card Somehow I Got To Know That It Is Not Possible.So I Tries To Fix An External GPU For My laptop From The Below Link:-

http://www.techradar.com/news/computing-components/grap...

But It Says I Need A Expresscard Slot For Doing That But I Don't Have One So I've Tried To keep USB To Expresscard 34
I will Be Connecting It To My USB 3.0 Because It Has Higher Bandwidth (5 Gigs/sec)

So Is It A Good Idea To Do So Will The GPU Work If I Do It Like That

My Laptop Specs:-
Intel core i5 2450m @2.5GHz
Nvidia GeForce Gt 525M
4GB DDR3
1Gb Dedicated To Graphics
500Gb Hdd
Windows 7 Home basic 64Bit

Please Reply

Thank You