While the HP Pavilion dm4-3002ea (2nd link) has the more powerful CPU, the TOSHIBA Satellite P850-138 (1st link) has the more powerful graphics chip.
When it comes to games you want the laptop with the more powerful graphics chip so that would be the nVidia GT 630m. The Core i5 can be up to 800MHz faster using Turbo Boost (less if both cores are being used), but most games are not limited by the CPU.
The Radeon HD 7470m is somewhere between the performance of the Intel HD 3000 and Intel HD 4000. The nVidia GT 630m is generally around 40% - 50% more powerful than the HD 4000 depending on the game.