660m

What is the performance difference between 650m and 660m? I have read in ome forums that 650m performs almost equal to 660m is it true?

I want to buy this laptop is it available in india? I dont know anyone living in the US so i would like to know how will it work out if i order from ebay. ? Asus G75 3rd Generation Intel Core i7-3610QM 3.3GHz Turbo,8GB,NVIDIA GTX 660M (Rs. 110235) its 1lakh, anyone know how much it...