Questions about the AMD64 Architecture

Discussion created by AndreaRossi on Jun 5, 2009
Latest reply on Jun 6, 2009 by edward_yang
AMD64 Architecture

Hello! I have a question for you.

I know that one difference between AMD64 and AMD64x2 is that the latter has two cores, which increase performances.

So, are there other differences in programming-related issues, like number and width of registers, instruction set, etc. ?