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    msi gx740 help meeeee

    Discussion in 'MSI' started by linekhat, Jan 3, 2013.

  1. linekhat

    linekhat Notebook Guru

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    Hi all
    i want to update my cpu and ram
    Which one of this is more powerful cpu cor i 7 740qm cor i 7 820qm cor i 7 640m?
    and ram 1333 or 1600 ?

    plzzzzzzzzzzzzzzzzzzzzz help meeeeeeeeeeeeeeeee:hi2::hi2::hi2::hi2::hi2:

    :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused:
     
    linekhat, Jan 3, 2013
    #1
  2. Prostar Computer

    Prostar Computer Company Representative

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    May I ask: why are those your options? And what laptop/motherboard is this for?

    Based off what you have here, the better CPU is the 820qm. Although it has a lower clock speed than the 640m, it has more cache, support for 1333MHz memory, and can address more memory bandwidth.

    1600MHz memory is faster, but with any of those CPUs, it will be downclocked to the fastest speed the processor can support, which is why I ask: why are those your options?
     
    Prostar Computer, Jan 3, 2013
    #2
  3. linekhat

    linekhat Notebook Guru

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    my motherboad is intel hm55 ......
    pro are you sure the 820 is better than 640m?
    640 go to 3.4gh and 820 3.1gh.....is 820 to much differnt than 740m?
    and i can oc the ram 1666mh :D
    you now in my ry iran price of the cpu 820 are 420$ and ram 122$..... :(
     
    linekhat, Jan 3, 2013
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  4. Marecki_clf

    Marecki_clf Homo laptopicus

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    i7-640M is a dualcore CPU, whereas i7-820QM is a quadcore CPU. The 640M will run DDR3 RAM at 1066MHz; 820QM will run DDR3 RAM at 1333MHz.
     
    Marecki_clf, Jan 3, 2013
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  5. Prostar Computer

    Prostar Computer Company Representative

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    What he said. :D

    You can overclock the memory all you want, OP. The CPU will not address the higher frequencies. :(

    Also, to substantiate Marecki_clf's post: The 640M only has dual cores with up to 4 threads. The 820QM has 4 cores with up to 8 threads. Clock frequency aside, the 820QM has considerably more potential.

    Happy hunting!
     
    Prostar Computer, Jan 3, 2013
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  6. linekhat

    linekhat Notebook Guru

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    ok sooooooooooo now................cor i 7 740qm 340$ or 820qm 420$.... they are to much different?
     
    linekhat, Jan 4, 2013
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  7. Prostar Computer

    Prostar Computer Company Representative

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    820qm has a slightly faster turbo clock, and 2 more MB of cache. Other than those two things, they are the same. It's up to you if you want to spend $80 extra for such minor differences.
     
    Prostar Computer, Jan 4, 2013
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  8. majster msi

    majster msi Notebook Evangelist

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    majster msi, Jan 4, 2013
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  9. linekhat

    linekhat Notebook Guru

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    you now in my country we cant by from ebay or amazon........and 920xm is not found in iran...shiiiiiiiiiiiiiiiiiiiit
     
    linekhat, Jan 5, 2013
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  10. Marecki_clf

    Marecki_clf Homo laptopicus

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    You can buy parts right here on this forum, in the NBR Marketplace section.
     
    Marecki_clf, Jan 5, 2013
    #10