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#1
November 26th 03, 04:43 AM
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What's the difference between an Opteron and an Athlon 64?
Well, they're both 64 bits and both use an x86-based instruction set and
both made by AMD so what exactly is the difference? Is it like the difference between a Pentium and a Xeon? Thanks and excuse my naivety. Wes 
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#2
November 27th 03, 03:38 AM
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"Wes Harrison" wrote in message ...
Well, they're both 64 bits and both use an x86-based instruction set and both made by AMD so what exactly is the difference? Is it like the difference between a Pentium and a Xeon? Thanks and excuse my naivety. Wes The Opteron has multi-cpu support, the Athlon64 truely does not. The Opteron has duel channel ddr memory the Athlon64 has one. The Athlon64 can use unbuffered memory the Opteron cannot. CPU socket... That´s about all I can think of off the top of my head Carlo
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#3
November 28th 03, 02:59 PM
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"Wes Harrison" writes:
Well, they're both 64 bits and both use an x86-based instruction set and both made by AMD so what exactly is the difference? Is it like the difference between a Pentium and a Xeon? Opterons have 3 HyperTransport channels, Athlon64/FX-51 has one. Opterons and Athlon64 FX-51 has a 144-bit wide memory bus while Athlon64 has a 72-bit wide memory bus. Athlon64s may appear with smaller caches but AFAIK the only currently available one (3200+) has 1MB of L2. *p
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#4
November 29th 03, 11:31 AM
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According to Per Ekman :
Opterons have 3 HyperTransport channels, Athlon64/FX-51 has one. Does that make any performance difference? Curious, Stephen
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#5
November 29th 03, 03:31 PM
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"Stephen Lee -- post replies please" wrote in message ... According to Per Ekman : Opterons have 3 HyperTransport channels, Athlon64/FX-51 has one. Does that make any performance difference? Curious, Stephen It makes a multi-cpu/no multi-cpu difference. Opteron line cpu's can support multi-processeors... No A64/AFX cpu can. Carlo
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#6
November 29th 03, 08:27 PM
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"Stephen Lee -- post replies please" wrote in message ... According to Per Ekman : Opterons have 3 HyperTransport channels, Athlon64/FX-51 has one. Does that make any performance difference? It would likely make a significant difference if you used them, none at all if you didn't. Other than connecting additional CPUs on the other HT channels, the onlt other significant current application is to put the AGP port on its own channel. DS
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