Will increasing the IGD DVMT memory setting in BIOS from 128Mb to maximum improve...

...gaming performance? My current settings are on 128mb, I read somewhere that increasing the IGD DVMT memory will improve graphics performance. Is this true?? Will this increase gaming performance??
I have 4gb of RAM, Intel Core 2 Duo 2.66ghz. I need some information on this IGD (Integrated Graphics Device) DVMT(Dynamic Video Memory Technology.) memory and the consequences of fiddling with it.

yes! it will increase framerate (fps) of the game slightly! set it to maximum

overclocking of the cpu will have a bigger performance gain... but use it as your own risk.