Gilboa is pretty much on the mark here although their not totally identical. As gilboa stated em64t implements sse3 instructions (while amd64 support sse2) and amd64 support the 3dNOW! instruction They both return the same value in uname -m in most kernels so don't let that confuse you. A very comprehensive document we've found on the matter resides here...
http://www-zeuthen.desy.de/~schoene/unter_texte/texte/amd64_znsem.pdf It covers both the differences,similiarities, history, cpu layouts,benchmarks and linux distributions available for these architectures and much more.. hope this helps.. Lior. On Sun, 06 Feb 2005 11:01:47 +0200, Gilboa Davara <[EMAIL PROTECTED]> wrote: > EM64T == iAMD64 == AMD x86-64. > Intel "re-invented" the AMD x86-64 64bit extension and add it the Nocoma > class Xeon/P4 CPUs. > (By reinventing I mean: Intel uses the same instruction set AMD64 has; The > Nocoma further adds a couple of SSE3 related instructions.) > > > On Sun, 2005-02-06 at 10:44 +0200, Shachar Shemesh wrote: > Erez Doron wrote: > hi > > > i have just bought a computer with xeon 64 > 3.Ghz HT. You mean em64t, right? Not Itanium. > what distribution do i use: > i386 or x86_64 ? What is your distribution of choice? What flavour (for > debian - sid or stable?). Is this a desktop machine or a server? Shachar > Gilboa Davara > Mobile: 972 54 4968909 > Email: <mailto:[EMAIL PROTECTED]> > <mailto:[EMAIL PROTECTED]> > > > -- Peace Love and Penguins - Lior Kesos ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
