Hello!

I ask this just, because I'm curious:

When Intel is saying e.g., their processor is running at 3000MHz, what does
this mean?
Is there really any digital signal inside at that frequency, and a PLL that
locks it to the in/out frequencies?

I know, if they say, there front side bus operates at 800MHz, it's only
200MHz. Then they just multiply it by 4, because it's 32bit. But I cannot
compare anything to vintage 8bit processors, so that doesn't make much
sense.

The second thing is: Processors are advanced thechnology. But could it be
possible to have these speeds for a digital circuit, which means, a
transition frequency of  >10GHz to remain any waveform other than a pure
sine? If I try to make a circuit with a simple 1stage transistor amplifier,
I'll use the most expensive III-V-HEMFET for 10GHz, and it's still a
challenging task, and power below 10W; and they can do this with >100 000
000 silicon tansistors, 100W of power, on a single chip for $250?

I ever tried to wind a wire loop around a running procesor and connect it to
a spectrum analyzer. But you can see anything from nearly dc up to the max
freq. of the analyzer. No strong peak at the declared frequency.

Thanks for your answers!

Steffen

-- 
Author: Steffen Maisch
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