Looking for help on laptop processors?

Well the second one is definitely better since it's using intel's latest technology to deliver you full power when attempting to run demanding applications and you won't experience slow downs when having an internet session, gaming session or video session depending on the graphics card for the two other factors listed. Core i5 is more reliable and it's overclockable so you won't have to worry about clock speed. Core 2 duo is an older version and at it's time it was an excellent processor. There is a new era in processors and that is i5 for handling tasks smoothly. I recommend i5 if one want's high- end gaming and ultra speed. All the best with your selection :)