> Appart wasting memory on page tables there are really few advantages on > 64bits for a *desktop* OS today. Even OSX claims to be 64bit "from the > bottom" while it actually still has a 32bit kernel that just happens to > allow 64bit processes, so I heard... > > François. > There are some interesting feaures in the x86_64 architecture, like 8 more registers and some others in the FPU, execute disable bit... Having more ram is not my problem :)