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Date: Sun, 06 Feb 2005 12:12:39 +0100
From: "O. Hartmann" <ohartman@mail.uni-mainz.de>
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Subject: Re: Intel EMT64 Xeon vs AMD Opteron
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David O'Brien schrieb:

>[ Please don't cross post! ]
>
>On Fri, Feb 04, 2005 at 09:25:19PM -0700, Scott Long wrote:
>  
>
>>Astrodog wrote:
>>>From what I understand, EM64T is essentally an extention to x86, so
>>    
>>
>>>it will understand the AMD64 instructions, much the same way an
>>>Athlon64 does. Opteron, once again, from what I've read on the topic
>>>is "Actual" 64-bit, not an emulated version.
>>>      
>>>
>..
>  
>
>>Both the AMD and Intel offering are just extensions to the ia32 design. 
>>Opteron is no more 'true' 64-bit than Nacona is.
>>    
>>
>
>Just as the i386 was just extensions to the 80286 design, which was just
>extensions to the original 8086 design. ;-)
>
>And just as the UltraSparc (Sparc v9) is just extensions to the 32-bit
>Sparc v8.
>
>Astrodog, I'm courous, what is the definition of a True 64-bit CPU?
>
>  
>
Maybe in honor the digital Alpha AXP?