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Subject: Re: SURPRISING RESULTS P4 Xeon dual 2.8Ghz

Author: Vincent Diepeveen

Date: 09:38:01 12/17/02

Go up one level in this thread


On December 17, 2002 at 12:08:04, Matt Taylor wrote:

>On December 17, 2002 at 11:50:59, Enrique Irazoqui wrote:
>
>>On December 17, 2002 at 11:28:27, Matt Taylor wrote:
>>
>>>On December 17, 2002 at 11:20:38, Enrique Irazoqui wrote:
>>>
>>>>Deep Fritz 7 runs about 8% faster on a dual Xeon 2400 (detected as 4 cpus)than
>>>>on a dual AMD MP 2200+ (2x1800 GHz). Both with DDR 333.
>>>>
>>>>Enrique
>>>
>>>Which board/chipset?
>>
>>This friend of mine tells me that the 2x2400 Xeon machine has RDR, not DDR,
>>sorry. Here are some specs (in Spanish):
>>
>>Placa Base SuperMicro P4DC6+
>>
>>- Chip-Set Intel© 860, Bus 400. Soporta RIMM 800Mhz. 4 bancos de memoria.
>>Ampliación máxima 2Gb. 2,5v.
>>- Controladora Adaptec 7899W Ultra 160 Dual.
>>- Slots de expansión: 2 PCI 64bits, 4 PCI 32bits, 1 AGP 4x Pro.
>>- Salidas externas: 2 serie, 1 paralelo, 4 USB 1.1., 2 PS/2.
>>- Soporta Adaptec SCSI RAID 2005S.
>>
>>Memoria RAM 1Ghz Rambus 800 Kingston
>>
>>- Velocidad de 8ns. RIMM de 800Mhz.
>>- Garantía de por vida. Índice de fallo: 1%.
>>
>>Enrique
>>
>>> I haven't seen any SMP boards that support better than a
>>>133 MHz FSB, and it's been a bitter disappointment.
>>>
>>>-Matt
>
>That's only 100 MHz. I was interested in the Athlon, though. My Athlon SMP
>system has a 133 MHz bus, and I've been sorely disappointed that no 166 MHz bus
>has popped up. I'm not suprised since JEDEC didn't standardize DDR-2 until this
>past summer, and it won't likely be out to market until next summer.
>-Matt

It's no coincidence that dual machines have always slower latencies than
single cpu machines can have.

It isn't easy to let them cooperate with each other!





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