I would go with the 8GB RAM. Although you may not see any noticeable performance increase, switching to the desktop using 'Alt+Tab' will make things be lag free faster and you won't have to wait a long time before it actually loads up. Also, newer titles may run on 4GB RAM even though they state 6GB is minimum, but a 4GB won't be able to handle browsing the internet and playing a game simultaneosly. Also, for a laptop I'd say the more the RAM the better... However, these are my views.