Based on benchmarks, I'm guessing on average the RM-75 is about 20% or more slower than the T6600. The trade off is the faster video card in the Asus laptop I posted.

Again, neither the DV6T nor the system I posted will blow you away, but both have their purposes. On the other hand, a fast CPU is only good if the rest of the system isn't holding it back. All in all, it just really depends where you want to make sacrifices. And at the $500-600 price point, there's always a sacrifice to be made. If you do more CPU intensive activities, the HP Pavillion DV6T is a great buy but if you want a low end gamer that can play a few new games at low settings, then the ASUS K50 Series K50AB-X2A is a great buy as well.