OK m8400GS does not exactly qualify as a gaming card, so I do not believe it makes much of a difference.
Here they are pretty much side by side with majority of games unplayable and the few they can at 800 x 600! http://www.notebookcheck.net/Computer-Games-on-Laptop-Graphic-Cards.13849.0.html
Thanks I know 8400M GS is still pretty weak for gaming... but maybe still better than a "professional card"(not exactly) NVS 135M... I have been playing most games up till 2010 on NVS 135M.... Lol sometimes 10fps is good enough for me