NVIDIA GeForce 8400M GS - Upgrade

[It-Guy]

Hi!

I have a laptop: HP Pavilion DV2899eo ARTIST EDITION
http://www.cnet.com/laptops/hp-pavilion-dv2899eo-artist/4505-3121_7-35257720.html

In the specs is shown next:

• Graphics Processor NVIDIA GeForce 8400M GS - 128.0 MB
• Total Available Graphics Memory 1407.0 MB

Does tis mean, that the maximum GPU chip i can use with this laptop is:
Nvidia GeForce GT 335M (1GB, 72@450Mhz)