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Date: | Wed, 11 Apr 2001 23:06:14 -0400 |
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Hi Herbert Graf! At 07:38 PM 4/11/01 -0400 you wrote:
>> Today we have up to 1.5GHz processors in our stores.
>>
>> 300,000000/15000000/4=0.05m (~2 inches)
>> is a quarter of wave length.
>>
>> I didn't hear something about 2GHz CPU are expected.
>> Maybe it is a limit or I missed something?
>>
>> What are your info, guys?
>
> The highest frequency involved in computers is usually limited to the
>processor die itself, those things usually measure at most 10mm square, so
>no, there shouldn't be a limit any time soon purely due to wavelength issues
>(you're talking about the 30~100GHz range there). OTOH there ARE a lot of
>issues that must be surpassed in order to go much beyond 4GHz (4GHz not
>being any concrete limit, it's just that the P4 does have a 2GHz version in
>existence (not for sale though) and parts of the P4 run at twice the CPU
>clock speed). I'm not quite sure why you are concentrating on quarter
>wavelengths though. TTYL
Since it is the shortest distance between 0 and maximum of wave.
I thought that different resonances and reflections will balk
to wave outspread without losses.
If your info is correct - thanks for that!
In this case we probably will see P10 relatively soon (~ after 3-5 years)<g>.
--
Stanislav Rabinovich
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