The key for laptop gaming is not so much the graphix chip - though that does have some bearing - but how the graphics system handles memory.
Laptops use what is known as "integrated" graphics, meaning there is no graphics card you can change out when you need to upgrade. Because of this, most laptops share system memory with the graphics system. Say you have 2 Gigs of Ram - but the laptop may "section off" a section of that memory just for use by the video chip. The problem is, this implementation tends to lack efficiency.
If your looking at laptops now or in the near future, look for one that states it has "dedicated video memory". This means that the video system has a physically separate memory system.
1GB of memory is great, provide its dedicated. Then a 4GB laptop with a decent / good CPU and your set....
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Good Hunting!
Captain Haplo
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