The Intel FPU is 80 bit. The ALU is 32 bit, I believe. I am pretty sure that the P7 will be the first true 64-bit Intel CPU. TomZ Dark_Dude <Dark_Dude@darkcastle.ecore.fnet.org> wrote in article <C111396221723.8506@darkcastle.ecore.fnet.org>... > The risc based Macs are (aren't they?). On a webpage of some intel-compatible > chip company, is listed that the intel processors are 80 bits INternally.