If you are buying your laptop just for browsing chatting and watching movies forget about checking your VGA any system you buy can perform this functions but if your are buying a laptop for work like Video Editing, Gaming or Function that depend on High Video performance you need to check the Video memory of your prospective laptop to make sure it can perform this functions or you will regret later.
VIDEO GRAPHIC UNIT
To Check your video Memory follow this steps.
FIRST: Right Click on Your Desktop and Click on personalize.
SECOND: Click on Display
THIRD: Click on Screen Resolution
FOURTH: Click on Advanced Settings
FIFTH: In the Next menu you will find all the info you need about your VGA.
HOPE YOU FOUND THE INFORMATION HELPFUL??????