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Is the performance of a CPU affected as it ages?

Is there a thing called 'aging' for electronic items? I mean for example, can my processor (CPU) gets inefficient with time or should it be working as the same efficiency that I bought brand new? What is the reason for this?

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marked as duplicate by Sathya Aug 24 '12 at 5:00

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Depends on "type" of "electronics": semiconductor (in plastic or ceramic carrier), film caps, electrolytic caps, carbon comp resistors, film resistors, vacuum tubes? –  sawdust Aug 24 '12 at 4:50
A CPU, as I read somewhere, has a life of ~10 years.. –  Vineet Menon Aug 24 '12 at 5:00

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Entropy, mostly. Everything deteriorates... to some extent. The hotter they run, the faster a CPU will burn out, though I couldn't tell you how long that would take.

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