How important is the 2nd level cache ? What would be the difference between say 4MB and 2MB ? I am looking at two laptops , one is about $100 cheaper and also comes with 1 x 2048 MB RAM as opposed to 2 x 1024 MB for the other (cheaper to upgrade) . But the less expensive laptop comes with an Intel Core 2duo T5670 1.8GHZ, 2MB L2 cache, the other with a Intel Core 2 Duo T7500 2.2 GHZ, 4MB L2 cache Shared video RAM is also 384 MB vs 358 MB for the cheaper model. Do these things make any difference for charting on multiple monitors ?