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Intel 2nd generation dual core processor vs intel core 2 duo

thatsx a very generized question...they equal in speed all the from old athlon 64's to the new phenom x4.

do you have to make a choice?

be specific please.
 
Any Sandy Bridge i3 (that's second generation Intel Core i3) will be far better than just about any Core 2 Duo unless you compare the very low power version to a top of the line Core 2 Duo and even then, the Core 2 Duo would still probably lose. I vote i3. I can't be more specific/accurate about performance differences without more information about the CPU models in question.
 






It's Indian Rupees 6500..
and I want to compare Latest 2nd Gen Dual core and Ist gen core 2 duo.