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 Post subject: Laptop CPUs
 Post Posted: Fri Jan 15, 2010 3:07 am 
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Joined: Tue Feb 27, 2007 7:21 am
Posts: 114
Cpus

Laptops are starting to have Intel i5 and i7 chips in them.

Intel® Core™ i5 520M 2.4GHz (2.93GHz Turbo Mode, 3MB Cache)
Intel® Core™ i5 540M 2.53GHz (3.06GHz Turbo Mode, 3MB Cache)

Intel Core i7 Processors
Intel® Core™ i7 620M 2.66 GHz (3.33GHz Turbo Mode, 4MB Cache)
Intel® Core™ i7 720QM 1.6GHz (2.8 GHz Turbo Mode, 6MB Cache)
Intel® Core™ i7 820QM 1.73GHz (3.06GHz Turbo Mode, 8MB Cache)
Intel® Core™ i7 920XM 2.0GHz (3.2GHz Turbo Mode, 8MB Cache)

I am looking at Differnt chips Mainly the 620M vs the 720QM Would it be best to go for higher Cache, higher ghz, number of Cores or number of Threads. Note 620m memory support is 800\1066 and the 720m is 1066\1333.


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 Post subject: Re: Laptop CPUs
 Post Posted: Fri Jan 15, 2010 8:22 am 
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Joined: Thu Jan 15, 2009 1:27 pm
Posts: 1105
Location: Stowmarket, Suffolk England
PC Pro recently tested a Laptop with an i7 installed and didn't complete thermal testing. Shame really as otherwise is a nice, fast system

So my advise is watch this space :)


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 Post subject: Re: Laptop CPUs
 Post Posted: Fri Jan 15, 2010 9:29 am 
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Joined: Sun Feb 04, 2007 11:44 am
Posts: 6070
Quote:
Would it be best to go for higher Cache, higher ghz, number of Cores or number of Threads. Note 620m memory support is 800\1066 and the 720m is 1066\1333.

I'd rank the importance of CPU specs as:

  1. No. of Cores and GHz
  2. Cache size and HT (Hyperthreading Technology) support

The No. of Cores and GHz are much more important than the Cache size and HT support. Some applications like games may favor GHz over the No. of Cores, but when running multiple applications or those which are multi-threaded will favor the No. of Cores. For newer processors both the base and "Turbo Boost" speeds should be considered. Memory performance is almost inconsequential, so I don't consider that much. Scott.


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