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45 nm vs 32 nm - Page 3

post #21 of 25
No, you're fine. Your explanation is quite good. Thank you for clearing that up. Is it fair to say, though, that regarding the earlier statement
Quote:
32nm will always be faster than 45nm, theoretically. Light takes a set amount of seconds to travel a distance of 45nm. It'll take light 71.1% the time it took to travel 32nm as compared to 45nm, so the smaller the nanometers, the faster the computations will be.
that the difference between 32nm and 45nm is negligible?
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post #22 of 25
Quote:
Originally Posted by grishkathefool;13667990 
No, you're fine. Your explanation is quite good. Thank you for clearing that up. Is it fair to say, though, that regarding the earlier statement that the difference between 32nm and 45nm is negligible?

The original post you quoted is pretty irrelevant, I'm not sure what the guy who posted it is on about, as the speed that light has nothing to do with processors (there is nothing to do with photons in their operation).

The reason that they can be faster is nothing really to do with how long the electrons take to transfer between transistors.

It's because by making everything smaller, they can fit more transistors in the same space as they used to, and obviously more transistors is better.

The other advantage is that less power is required to operate it, and less power means less heat, so again more transistors can be used in the chip before reaching thermal limits.
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post #23 of 25
Quote:
Originally Posted by Xenthos;13665476 
Wait, so, you're saying you found something that goes faster than the speed of light ?
Oh boy OCN is getting better with the day.

It is called warp speed to star trak fans.
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post #24 of 25
Quote:
Originally Posted by grishkathefool;13666673 
My understanding is that nothing moves faster than light, but that some interactions can take place nearly instantaneoulsy, quantum relationships, for instance.

What I was attempting to illustrate is that if you had a million mile wire with insignificant resistance and you applied a voltage to it, you would be able to measure that voltage before a photon emitted from point 0 could reach the end of the wire. The electron only has to travel as far as the next electron, whereas the photon has to travel the whole distance.

I would like to have my understanding clarified, though. I am not abject to learning, enorbet.

Greetz
I think the stumbling block you are experiencing has to do with loose terminology that sets you up to allow something that can't exist. As emboldened in the above quote, "nearly" is way too much slop. It's just our perspective. As soon as we drift too far beyond our own experience our perspective becomes skewed. It is impossible to really grasp the enormity of the Cosmos on one end or the Planck Scale on the other. Similarly time scales in eons or nanoseconds are simply not subject to "common sense". To go there, one needs mathematical precision to even have a clue.

A "million mile wire" cannot have "negligible resistance" since it is not at all uncommon for copper wire to have nearly one Ohm per Foot! This is why transmission lines are tens of thousands of volts and why Alternating Current is more practical than Direct Current for longer distances than a few hundred feet.

Granted, things get truly weird at sub-atomic levels but whatever that is and however that functions, it still translates into what we're used to on this level and so far Quantum Mechanics has not supplanted Relativity. The Earth (or our home's floor) isn't really solid but we can still walk on it. In such a pragmatic sense, electricity seems "nearly instantaneous" but in objective reality, it is not.
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post #25 of 25
Every once in a while, there's a thread on here that counteracts the numbing effect that OCN generally has on my brain.

This is one.
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