Why are CPUs stuck at 3Ghz
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Last response: in Overclocking
texastailspin
August 26, 2009 3:52:02 PM
overshocks
August 26, 2009 4:24:06 PM
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we are basically stuck around the 3.0 ghz viscinity because the more ghz a cpu uses, the more heat it outputs and because air is used to coolmostof the worlds processors the heat will be too much to handle and even liquid cooling has its limits, so since they are no longer able to simply compete ghz for ghz, they must find new ways for cpus to get faster while maintaining an acceptable thermal envalope
overshocks
August 26, 2009 5:55:42 PM
overshocks said:
"viscinity" is not a word.seeing how you cannot spell a simple word, it seems your whole paragraph is meaningless and untrustworthy
"viscinity" "visinity" "vicsinty" "viscinty""vicinty" "vicinity" is hardly a simple word.
And I don't know for certain, but keeping in mind that this is an international website, there's a pretty good chance that Inglish English may not be his first language.
SL2W8
August 26, 2009 7:04:53 PM
CompuTronix said:
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Then my wife went to Wawa for coffee, saw a Flyer advertising this little air show, and the next day I drove to the airport and bought an hour.
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derek2006
August 27, 2009 4:30:01 AM
texastailspin said:
I am curious why CPU manufacturers are stuck at 3Ghz?I understand we are utilizing multi core technology, increased the bus width and better use caching to give us the added horse power but that is only useful if your OS and Application can utilize it.
I will get this back on subject.
A single transistor can switch in the Terahertz range by itself and Intel has shown this off before (google it), however the copper wires and the distances between the transistors heavily limit us. We are hitting the limit of how fast electrons can flow through copper. Even though electrons can travel near the speed of light, as they pass through materials such as copper, they hit the nuclei of the copper atoms and bounce back and forth making the distance they actually travel forward somewhat slow. With all these collisions happening it creates heat due to the friction. Heat is a measure of how much an atom is vibrating back and forth. Because the copper atoms are vibrating so much it further increases the friction making even more heat while even more-so slowing down the electrons. This is why we try to keep our processors cool so we can overclock higher. With less collisions the electrons move onwards faster which can yield a higher clock speed. Also by making processors smaller it decreases the distance between the transistors which is 1 of the many reasons we are still slightly getting faster.
Processors will not get a significant clock speed increase until we use different materials. I personally think it would be great if we could build a transistor that could switch off of light. Then we should be able to hit terahert frequencies.
I am basing this off of what I know and it is kind of my theory, I did not research this so don't crucify me if I got something wrong.
Also I wanted to say I am amazed that some of you had to ask the op to rephrase and elaborate on the question. Really, is it that hard to understand? O ya, this is rhetorical, I don't actually care to read why.
knotknut
August 27, 2009 2:42:29 PM
uncfan_2563
August 27, 2009 3:04:01 PM
uncfan_2563
August 27, 2009 4:34:49 PM
derek2006
August 28, 2009 12:21:27 AM
what about platinum?
reply to original post
http://en.wikipedia.org/wiki/Clock_speed#Limits_to_cloc...
reply to original post
http://en.wikipedia.org/wiki/Clock_speed#Limits_to_cloc...
psycho sykes
August 28, 2009 12:35:38 AM
overshocks said:
"viscinity" is not a word.seeing how you cannot spell a simple word, it seems your whole paragraph is meaningless and untrustworthy
O rly? http://www.tomshardware.com/forum/253708-29-best-overcl...
xaira said:
what about platinum?Platinum would probably prevent Intel keeping up with Moore's Law. Remember that Moore's Law now says (after it was refined decades ago) that the number of transistors that can be placed on an IC to achieve the lowest cost per transistor doubles every two years. Most people forget about that middle part.
psycho sykes
August 28, 2009 12:57:03 AM
Quote:
randomizer wrote:Platinum would probably prevent Intel keeping up with Moore's Law. Remember that Moore's Law now says (after it was refined decades ago) that the number of transistors that can be placed on an IC to achieve the lowest cost per transistor doubles every two years. Most people forget about that middle part.
What's about my last post
.Regards.
derek2006
August 28, 2009 1:21:17 AM
Additionally platinum by it self does not conduct electricity all that well. Here is a list of elements and their conductivities.
http://environmentalchemistry.com/yogi/periodic/electri...
Also I wanted to say that the distances and the interconnects to each transistor is not the only factor slowing us down and creating heat. I kind of made it sound that way. But transistors also create heat when switching and can be much more efficient when using different materials such as when we switched to High-k dielectrics.
This time I actually did go back and research some of the things I posted last night. The transistor that Intel made uses different materials from the ones we currently use. I want to correct myself and say that a single transistor that is in your processor cannot operate at 1THz, however it will still operate at a much higher speed by itself. The University of Illinois also made a 604GHZ transistor but again with different materials. If we can find a way to use these transistors along with different interconnects we could get very fast cpu's using electrons yet.
Also I do not know much about how carbon can be used as a replacement over silicon. Hopefully someone else does.
http://environmentalchemistry.com/yogi/periodic/electri...
Also I wanted to say that the distances and the interconnects to each transistor is not the only factor slowing us down and creating heat. I kind of made it sound that way. But transistors also create heat when switching and can be much more efficient when using different materials such as when we switched to High-k dielectrics.
This time I actually did go back and research some of the things I posted last night. The transistor that Intel made uses different materials from the ones we currently use. I want to correct myself and say that a single transistor that is in your processor cannot operate at 1THz, however it will still operate at a much higher speed by itself. The University of Illinois also made a 604GHZ transistor but again with different materials. If we can find a way to use these transistors along with different interconnects we could get very fast cpu's using electrons yet.
Also I do not know much about how carbon can be used as a replacement over silicon. Hopefully someone else does.
psycho sykes
August 28, 2009 2:47:41 AM
derek2006 said:
Additionally platinum by it self does not conduct electricity all that well. Here is a list of elements and their conductivities. http://environmentalchemistry.com/yogi/periodic/electri...
Also I wanted to say that the distances and the interconnects to each transistor is not the only factor slowing us down and creating heat. I kind of made it sound that way. But transistors also create heat when switching and can be much more efficient when using different materials such as when we switched to High-k dielectrics.
This time I actually did go back and research some of the things I posted last night. The transistor that Intel made uses different materials from the ones we currently use. I want to correct myself and say that a single transistor that is in your processor cannot operate at 1THz, however it will still operate at a much higher speed by itself. The University of Illinois also made a 604GHZ transistor but again with different materials. If we can find a way to use these transistors along with different interconnects we could get very fast cpu's using electrons yet.
Also I do not know much about how carbon can be used as a replacement over silicon. Hopefully someone else does.
I'll see what i can Find.
Regards.
bryanbee
August 28, 2009 3:42:50 AM
lol the viscinity guy's answer was good, don't rip on him for misspelling a word dude. www.englishpage.com if you want to discuss punctuation etc.
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