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From: Bob I on 18 Feb 2010 08:46
Unfortunately the only part of HyperThreading that that was effective in
the real world was the "Hype". In controlled bench marking using
software that was designed to take advantage of that feature they could
improve performance by 25%. Real world use shows otherwise.

http://www.pcworld.com/article/107492/two_cpus_in_one.html

So go ahead and plug the new chip. The jump from 2.4 to 3.0 will get you
a nice bump. Toggle HT off if you don't see a performance increase.


cement_head wrote:

> Multi-threading, multitasking, video processing, gaming, and being able to do
> heavey computational loads and still being able to access my system.
>
> "John John - MVP" wrote:
>
>
>>cement_head wrote:
>>
>>>Hello,
>>>
>>> I have a P4 2.4 GHz non-HyperThreaded CPU on a machine running WindowsXP
>>>(SP3; all updates). I am planning on putting in a 3.06 GHz HyperThreaded CPU
>>>into the machine (all other hardware will remain identical).
>>>
>>>I have read that to maximise usuage of the HT CPU, I should re-install
>>>WindowsXP to have the MicroSoft WindowsXP Pro SP3 install the proper
>>>multithreading kernel.
>>>
>>>Is this true? Or can I just put the CPU in and reboot? Or...Although the
>>>current install wil recognise the HT CPU, to truly maximise the usuage of it,
>>>I should in fact do a fresh install so that the multithreading kernel will be
>>>promperly complied on install?
>>>
>>>Any suggestions would be helpful.
>>
>>All you need to do is enable Hyper-Threading in the BIOS and Windows XP
>>will recognize it without you needing to do anything else.
>>
>>Certainly none of my business but I have to ask what do you intend to
>>gain performance wise by doing this upgrade? With all due respect I
>>submit to you that at best the gains (if any) will be negligible and
>>that at worse your machine might be slower and that you may end up
>>disabling HT to improve performance of the machine! Unless a particular
>>application vendor instructed you to do this to improve performance with
>>their application this upgrade is probably just a waste of time and money.
>>
>>John
>>.
>>

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