Graphics card replacement for 5920G-602G16MN

I am looking for a replacement graphics card for my Acer Aspire 5920G-602G16MN laptop. The standard one is 512mb. I'm wondering if this one is compatible with my laptop:

http://www.ebay.com/itm/Geforce-GTX240M-DDR3-MXM-II-VGA-1GB-Card-Video-card-For-Acer-Aspire-5520G-5920G-/322497535039

Many thanks.

(I guess I put my question in the wrong sub-forum, just could not find the proper thread)