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Silicon Chip 4GHz Limit - Page 2

post #11 of 15
Quote:
Originally Posted by andrews2547 View Post
just look at my CPU-Z validation in my sig.

What he means is tha Intel/AMD cannot build 4.0GHz chips atm...

I mean: They build ..., ...GHz,...2.0GHz,... 2.5GHz, 3.0GHz, 3.2GHz, 3.4GHz, 3.46GHz, but (I think) that's the highest clock they can actually build (in their fabrics) Trying to go higher would simply generate too much heat (for a standard new, out of factory comming, chip), and they are limited to that for now (they can't solve that problem atm)
We can cool it with decent AIR, LN2 or so, but it's not the "common" people who do that, it's not the purpose of Intel to sell a 5.0GHz to the people and they would deliver it with a LN2 cooler in stead of the stock Intel fan

So they started to creat double core chips, and quad etc...
   
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post #12 of 15
What I think the engineers meant, is that there is a peak of power/heat efficiency, and it's below 4GHz. Past that speed, the heat and power consumption of the chip rises faster than the clock speed goes up. It's not impossible (as many here prove every day), but with current technology it's not effective for a mass market chip maker to do.

With AMD and Intel moving to CoolIt and AseTek coolers for their top end chips, we may well see the heat part of that equation drop out. Power draw will still be a problem. (Insert Bulldozer blew my house electrics story here)
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post #13 of 15
Thread Starter 
I know processors still gain performance beyond 4GHz, I heard AMD broke the record recently, and I know how easy it is to go past 4GHz in modern times...

http://spectrum.ieee.org/computing/h...quency-stalled
http://www.physicsforums.com/showthread.php?t=264924
http://communities.intel.com/thread/16036

I don't like to pretend I know more about this stuff than engineers, but to me it sounds less like an actual limit and more like the highest manufacturers are going to set stock clocks. It sounds like they'll just end up forcing people to thread applications and throwing more cores on a chip, Intel's already talking about bringing chips into the third dimension (though even that has the limit of Moore's Law at some point).

Anyway, the reason I was asking is that I really do not understand.
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post #14 of 15
Quote:
Originally Posted by allikat View Post
What I think the engineers meant, is that there is a peak of power/heat efficiency, and it's below 4GHz. Past that speed, the heat and power consumption of the chip rises faster than the clock speed goes up. It's not impossible (as many here prove every day), but with current technology it's not effective for a mass market chip maker to do.
Well, that's exactly what I mean (You can explain it better in English then I do offcourse, since I speek Flemish )

And as you can see in my sig, it's indeed possible to go beyond 4.0GHz
   
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