Desktop vs Mobile (Intel)

I've seen very few comparisons between the Intel P4 (Desktop version) and the Pentium M (with 2MB Cache) as far as gaming performance.If someone was to buy a gaming notebook today and was given the option of a P4 3.6GHz HT chip versus a P-M 2GHz chip (same Video Card, RAM, HDD etc...), which do you think would be better suited for FS9?Many seem to agree that FS9 is mainly processor intensive, so which combination is better? The higher clock speed/lower Cache/higher FSB (P4 HT) or the lower clock speed/higher Cache/lower FSB (Pentium M)?Thanks for the input in advance.