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why do intel & amd underclock their cpu

post #1 of 14
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ive always wondered why intel ships a 2gig cpu which is capable of 3gig,like the q6600,surely if they clocked their chips to 3gig more people would buy them.as evey one else on these forums over clock theirs with no problems.
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post #2 of 14
Um because its what they're running at.. if they decided to set them to 3 ghz.. we'd OC more
post #3 of 14
to lower temps. and make them more stable
post #4 of 14
It's about envelopes. The Q6600 is not sold as a 3.6 Ghz part because the stock cooler might have problems with >150W of heat.
    
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post #5 of 14
Quote:
Originally Posted by bcham View Post
ive always wondered why intel ships a 2gig cpu which is capable of 3gig,like the q6600,surely if they clocked their chips to 3gig more people would buy them.as evey one else on these forums over clock theirs with no problems.
Slower chips are more stable. For almost all users, stability is much more important than speed. You don't want a computer that's crashing all the time, yes?

Slower chips are also cheaper; you sell more of the cheaper chips, which means you have bigger profits.

Finally, slower chips run further from their limits, which means they are less prone to failure (this is related to the first point). Fewer failures mean fewer returns for warranty purposes, which translates to fewer financial losses.
    
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post #6 of 14
Binning.
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post #7 of 14
because they are designed to run with the stock cooler, which is horrible. also, not all processors are created equal; some run hotter and some run cooler. the hottest running processor still has to work with the stock fan. some processors are just designed better than others.
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post #8 of 14
Quote:
Originally Posted by mnishimura00 View Post
because they are designed to run with the stock cooler, which is horrible.
Naw... if the reason was simply "designed to run with the stock cooler", would Intel just improve the cooler and sell their CPUs for more?

Quote:
Originally Posted by mnishimura00 View Post
some processors are just designed better than others.
But most processors are the same design. The Core 2 series are basically the same design (with some manufacturing differences and tweaks)


The main reason is Intel has done risk and failure analysis. It has figured out at how often a batch (and what area of the silicon disk) will fail and generally at what speeds. Then they add a margin of error by downclocking the whole batch. It's cheaper to do that then test each individual CPU for maximum clock. Also, marketing and pricing has to do with the binning as well.
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post #9 of 14
Yeah, they design it around the "stock cooler".. but with a nice upgrade you can easily hit alot more
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post #10 of 14
Quote:
Originally Posted by Lysdexik View Post
Yeah, they design it around the "stock cooler".. but with a nice upgrade you can easily hit alot more
This does not make any sense whatsoever. To me, this suggests that they designed the HSF first, before they designed the CPU. Not too logical to me.
    
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