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   From: ken scharf    
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   Newsgroups: alt.os.linux.ubuntu   
   Subject: Re: Ubuntu 64-Bit   
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   Date: Thu, 18 Jan 2007 20:49:14 -0500   
   Xref: number1.nntp.dca.giganews.com alt.os.linux.ubuntu:8372   
      
   Richard Asbridge wrote:   
   > 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 :)   
   I think there are specific kernel image packages for each cpu   
   (Athlon64/Opteron and em64t).  Slightly different compile options for   
   better performance.  Use of these is optional.   
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