[Skunkworks] AMD vs Pentium processor.

Hi, i urgently need to purchase a Toshiba L305. So i walked into one of the distributors shops and alas! I find the said laptop but two with similar specs but different processor. Happy people i had to walk out coz the guyz there were not very clear. Somebody tutor me on the pros and cons of having one and not the other performance wise. Thanks n God bless. -- People should know when they are conquered.