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   Date: Thu, 18 Jan 2007 21:48:32 +0000   
   From: Richard Asbridge    
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   Newsgroups: alt.os.linux.ubuntu   
   Subject: Re: Ubuntu 64-Bit   
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   MCR wrote:   
   > I was reading the Ubuntu Help file and it mentions that the 64-Bit    
   > Versions referred to on the FTP servers are in fact Core Duo compatible    
   > (There is no reference to this on the download mirrors).  The mirror    
   > sites mention AMD and thats it.   
   >    
   > Here are some more questions   
   >    
   > 1) Is it indeed a fact that if I download the 64 bit edition it will    
   > work with my Core Duo CPU?   
   >    
   > 2) Like windows, is Memory Management the only real benefit?  Does it    
   > run better/faster   
   >    
   > 3) Are the repositories the same and can I use 32-bit based programs   
   >    
   > 4) Will Beryl work?   
   >    
   > 5) I assume I have to wipe and install from scratch, which is a pain...    
   > is it worth it?   
   >    
   >    
   Hi,   
      
   The standard that AMD introduced for 64bit is supported by the Intel    
   core 2 Duo (note the 2) the Intel Core Duo (it's predecessor) is a 32bit CPU   
      
   read these for details of each:   
   http://en.wikipedia.org/wiki/Intel_Core_Duo   
   http://en.wikipedia.org/wiki/Intel_Core_2_Duo   
      
   If you have the core 2, then you can indeed use the X86-64 version of    
   any Linux distro often marked "amd64" or "EM64T" or X86_64 in the    
   downloads section of various distro sites.   
      
   Read this for details about the standard:   
   http://en.wikipedia.org/wiki/X86-64   
      
   hope that clears things up :)   
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