Which P4?

I am looking at two 3.6GHz Intel P4 processors with 800MHz FSB, but although
they look to be the same, they are numbered 640 & 641. Also, one is 90nm and
the other is 65nm. I have no idea what these numbers mean, so could someone
explain them to me? Aren't these two processors the same? Which one should I
pick to fit into an Asrock motherboard 775V88? How might I tell the
difference between them if bought in local pc shop?

TIA.
Joe.

"Joe" <> wrote in message
news:fFLch.55730$. uk...
>I am looking at two 3.6GHz Intel P4 processors with 800MHz FSB, but
>although
> they look to be the same, they are numbered 640 & 641. Also, one is 90nm
> and
> the other is 65nm. I have no idea what these numbers mean, so could
> someone
> explain them to me? Aren't these two processors the same? Which one should
> I
> pick to fit into an Asrock motherboard 775V88? How might I tell the
> difference between them if bought in local pc shop?
>
> TIA.
> Joe.
>
>
>

NOT 3.6GHz...'sorry. Shoulda said 3.2GHz

Joe wrote:
> "Joe" <> wrote in message
> news:fFLch.55730$. uk...
>> I am looking at two 3.6GHz Intel P4 processors with 800MHz FSB, but
>> although
>> they look to be the same, they are numbered 640 & 641. Also, one is 90nm
>> and
>> the other is 65nm. I have no idea what these numbers mean, so could
>> someone
>> explain them to me? Aren't these two processors the same? Which one should
>> I
>> pick to fit into an Asrock motherboard 775V88? How might I tell the
>> difference between them if bought in local pc shop?
>>
>> TIA.
>> Joe.
>>
>>
>>
>
> NOT 3.6GHz...'sorry. Shoulda said 3.2GHz

Get the 641, not the 640. The 641 should have the NX-bit security
feature on it, while the 640 won't. Likely the 641 also has a larger L2
cache, but I'm not certain.

Yousuf Khan

Yousuf Khan wrote:
> Joe wrote:
>
>> "Joe" <> wrote in message
>> news:fFLch.55730$. uk...
>>
>>> I am looking at two 3.6GHz Intel P4 processors with 800MHz FSB, but
>>> although
>>> they look to be the same, they are numbered 640 & 641. Also, one is
>>> 90nm and
>>> the other is 65nm. I have no idea what these numbers mean, so could
>>> someone
>>> explain them to me? Aren't these two processors the same? Which one
>>> should I
>>> pick to fit into an Asrock motherboard 775V88? How might I tell the
>>> difference between them if bought in local pc shop?
>>>
>>> TIA.
>>> Joe.
>>>
>>>
>>>
>>
>> NOT 3.6GHz...'sorry. Shoulda said 3.2GHz
>
>
> Get the 641, not the 640. The 641 should have the NX-bit security
> feature on it, while the 640 won't. Likely the 641 also has a larger L2
> cache, but I'm not certain.
>
> Yousuf Khan

Hi All,

Just wait; In Jan. 6xx will take over current 5xx price (and 6xx will be
reintroduced! ) Only take xx0 or xx5 (like 630/640) when using
i915Chipset based Board, for i945/965/975 wou'll better take xx1/xx6
(like 631/641)