My PC is an AMD Athlon 3200+ 64-bit I couldn't tell you if it is running faster as I would have needed to go from a 3200+ 32-bit cpu to a 3200+ 64 bit cpu. (My old PC is an AMD Athlon 1800+ 32-bit) As Hartwichr states, you actually need a 64-bit OS and have the program in question be optimized for 64-bit to be able to gain anything from the extra instructions. BUT, imho...it can't hurt at all to have a 64-bit cpu, as that is the direction everything is headed in.

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