Physical differences between 32-bit and 64-bit?

hi

Can anyone answer that? As far as I can see, the only physical difference between the chips is that 64-bit registers have been added...

falcon

what else needs to change?

Nothing NEEDS to change, I was just wondering if anything else had.

more pins? (939/940/754 for amd64)

diff socket. nout to do with the core?

think its 64 bit regs and 64bit instruction set

Quote:

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Originally Posted by Swafeman

diff socket. nout to do with the core?

think its 64 bit regs and 64bit instruction set

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There's the memory controller too - but an on die memory controller could have been done with 32bit too - it's just AMD decided to do it with the Hammers.