Re: AMD64-based laptops from HP/Compaq are crippled

From: alex goldman (hello_at_spamm.er)
Date: 07/05/05 

Date: Tue, 05 Jul 2005 11:37:29 -0700

General Schvantzkoph wrote:

> On Mon, 04 Jul 2005 20:46:58 -0700, alex goldman wrote:
>
>> I've been researching my next laptop purchase, and whether it will run
>> Linux, and completely accidentally stumbled upon an alarming issue that
>> people need to be more aware about.
>>
>> Apparently (and if my understanding is correct), HP/Compaq disables
>> dual-channel memory access in Socket 939 motherboards, making CPU <-> RAM
>> communication slower, and overall performance less than what people would
>> expect when buying a system with the outward characteristics of what they
>> think they are getting.
>>
>> http://zv6000forums.com/viewtopic.php?t=148
>
> Turion's are in 754 packages not 939,

What do Turions have to do with it?

> they have one memory controller not
> two. If you want performance then make sure you get a processor with a 1M
> Cache, the cache size is much more important then either clock speed or
> dual memory channels.

For some tasks. For others, dual-channel will run twice faster.

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