Xps m 1330 mother board failer

Hi

I have xps m1330 for almost 1.5 year. But its graphic card broke down towic and I have to relpace it. I find some websites in which they sell xps mother board. I am looking for new xps mother board with Intel graphic card.

I fine in Dell website 4 mother boards but I really do not know which  one is suitable for me (http://accessories.us.dell.com/sna/productcompare.aspx?c=us&category_id=7075&cs=19&l=en&s=dhs&mfgpid=192266&chassisid=8463&prods=X635D,K984J,GM848,PU073). I also Find this http://cgi.ebay.co.uk/New-Dell-XPS-M1330-Laptop-motherboard-Intel-Video-GM848_W0QQitemZ380139596037QQcmdZViewItemQQptZUK_Computing_LaptopMotherboards_CPUs_CA?hash=item588215e905

Could you please tell me what is the diference becouse the price changes a lot!

Tanx

Mohammad