laptop gaming != serious gaming, unless you have an Alienware or Dell XPS 17" with SLI graphics
1. laptop gfx chpisets have less clock speeds than the desktop counterparts so 8600M (M=Mobile) doesnt have the same performance like 8600GT desktop card. and when it comes to CRYSIS, it will bring even a powerful rig to its knees
2. go to dell website, use your service tag and get the latest drivers or download from the site mentioned by amitava
3. laptop gfx chipsets can't be upgraded
4. refer above post
5. yes, you can also check in
http://www.systemrequirementslab.com/referrer/srtest
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