Sorry, ... On Tue, Sep 23, 2008 at 21:26:11 +0200, Moritz Barsnick wrote: > But trust me: Both Core Duo and Core 2 Duo support 64bit extensions, > almost identically. Don't trust me! I'm wrong! I'm ashamed! There do exist Core Duos without AMD64/EM64T/Intel 64 extensions. Sorry, Moritz