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Intel cpu differences

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August 21, 2010 6:43:06 PM

Hello,
What should influence my decision in buying a laptop with either a i3, i5 or i7 chip?
what are the pro's and con's of each chip and what marks the main differences between them?
I've notices that all these chips can run at the same speeds. for example 1.8GHz or 2.4GHz etc....
so what marks the main differences between them?

More about : intel cpu differences

a c 131 à CPUs
August 21, 2010 7:06:23 PM

Click on mobile products below on the side bar:
http://ark.intel.com/

In summary:
Mobile i3: 2 cores with hyperthreading but no turbo boost
Mobile i5: 2 cores with hyperthreading and turbo boost
Mobile i7 6xx: 2 cores with hyperthreading and turbo boost
Mobile i7 7xx: 4 cores with hyperthreading and turbo boost
Mobile i7 8xx: 4 cores with hyperthreading and turbo boost

The cache levels are also different. The i5 and i3 have 3mb of cache and the i7 goes from 4mb to 6mb to 8mb when you move from 6xx to 7xx to 8xx

Those are the main differences.
Hyperthreading improves multi-threaded performance in programs that support it.
Turbo boost improves single threaded performance when less than all cores are being utilized.
More cache can improve performance under certain circumstances.

If all those features were removed and all the models had the same clockspeed and core count, they would perform the same (ie they have the same underlying architecture).

If you want any specific help, you'll have to ask more specific questions and tell us about your situation.

Hope that helped.
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August 22, 2010 12:38:06 AM

enzo matrix said:
Click on mobile products below on the side bar:
http://ark.intel.com/

In summary:
Mobile i3: 2 cores with hyperthreading but no turbo boost
Mobile i5: 2 cores with hyperthreading and turbo boost
Mobile i7 6xx: 2 cores with hyperthreading and turbo boost
Mobile i7 7xx: 4 cores with hyperthreading and no turbo boost
Mobile i7 8xx: 4 cores with hyperthreading and turbo boost

The cache levels are also different. The i5 and i3 have 3mb of cache and the i7 goes from 4mb to 6mb to 8mb when you move from 6xx to 7xx to 8xx

Those are the main differences.
Hyperthreading improves multi-threaded performance in programs that support it.
Turbo boost improves single threaded performance when less than all cores are being utilized.
More cache can improve performance under certain circumstances.

If all those features were removed and all the models had the same clockspeed and core count, they would perform the same (ie they have the same underlying architecture).

If you want any specific help, you'll have to ask more specific questions and tell us about your situation.

Hope that helped.





I agree to the most part of what Enzo Matrix said, but about the i7-7xx mobile series...

According to Intel, http://ark.intel.com/ProductCollection.aspx?familyId=43...
All Intel Core i7 Mobile Processors, including the 7xx series, does indeed features the Intel Turbo-Boost Technology.

Other than that, I think Enzo Matrix pretty much explained everything very clearly.
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a c 131 à CPUs
August 22, 2010 1:05:22 AM

reventon_703 said:
I agree to the most part of what Enzo Matrix said, but about the i7-7xx mobile series...

According to Intel, http://ark.intel.com/ProductCollection.aspx?familyId=43...
All Intel Core i7 Mobile Processors, including the 7xx series, does indeed features the Intel Turbo-Boost Technology.

Other than that, I think Enzo Matrix pretty much explained everything very clearly.

Yep. Corrected to avoid confusion.
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