Inspiron 660S – Can upgrade the Video Card to NVidia GT660 improve font clarity?

Hi,

 I am using Inspiron 660S (Intel Core i3 – 2120 , RAM 4GB – Intel Integrated Graphic) ) running on Win 7 home Premium,I find that the font and icons is not as clear as in Win XP (Pentium 4 Intel Extreeme Graphic)

http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/fonts-in-windows-7-are-fuzzyblurry/0d76de45-0e87-4554-b14c-2aef6eb6ea29

May I know if upgrading the video card to NVidia GT620 would help improve the font clarity?

Thanks

Low