Hi Dilton,
Take my word for it, we also wish it was an easy question to answer!
Anyway, the main bottleneck is the graphics card. A good page for graphics card comparison is
http://www.videocardbenchmark.net where they have a search function and I found your card here
http://www.videocardbench...u=Intel+HD+i5+M+450. I would definitely recommend a card that scores at least 2000 on these tests, but I realize you're using a notebook so you can't easily change the card.
On top of this though, no matter what card you're using, if you don't have decently fresh drivers installed, anything can happen. With old drivers, any card can turn into a disaster - so always start with checking the drivers!