Difference between 2nd generation and 3rd Generation Intel core i5
I need to buy a Laptop so I would like to know about the difference between 2nd generation and 3rd Generation Intel core i5. If you are experienced on this then please tell me which one is best as I need more steady and smooth operation and longer lasting. I have done some research on that and I found that 2nd generations is Sandy Bridge and 3rd generations is Ivy Bridge. So please let me know more about it & it's convenience.