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    T420 i5-2520m Windows Experience Index

    Discussion in 'Lenovo' started by rogerspass, Apr 14, 2011.

  1. rogerspass

    rogerspass Notebook Enthusiast

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    Just wonder if someone can post the Windows Experience Index of T420 with i5-2520m CPU. So far, I have seen the WEI of i3-2310m, i5-2540m, i7-2620m in several posts. But not the 2520m, or maybe I missed.

    Since I found the CPU passmark looks interesting.
    PassMark - CPU Benchmarks - List of Benchmarked CPUs

    According to the mark, the CPU provided in T420 so far has the passmark listed below:

    i3-2310m: 2738
    i5-2410m: 3333
    i5-2520m: 1737
    i5-2540m: 3431
    i7-2620m: 3445

    The 2520m seems weird. It is even lower than the i3-2310m, which is in T420i. If the passmark is correct, then there is no point to get 2520m. Further more if you look the i5-2410m which is in T420i, its passmark is 3333 which is also close to 2540m.

    So in price/performance wise, it's probably good enough to get T420i with i5-2410m, isn't it?
     
    rogerspass, Apr 14, 2011
    #1
  2. rogerspass

    rogerspass Notebook Enthusiast

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    rogerspass, Apr 14, 2011
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  3. vinuneuro

    vinuneuro Notebook Virtuoso

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    It's obviously a mistake just like notebookcheck's i7-2620M numbers are wrong.

    [​IMG]
     
    vinuneuro, Apr 14, 2011
    #3
  4. Tsunade_Hime

    Tsunade_Hime such bacon. wow

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    Realize it is an Experience Index and not an actual benchmark. WEI can spit out random numbers.
     
    Tsunade_Hime, Apr 14, 2011
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  5. LoneWolf15

    LoneWolf15 The Chairman

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    I' gonna go with the above answer. The differences between the 2520M and 2540M are so slight (100MHz base and peak Turbo speed). No cache differences. No feature differences, and the graphics clocks are the same.

    Check the Intel comparison.

    Compare Intel® Products

    The features the i5-2410M lacks that the 25xx family has:

    AES New Instructions -If you have a Bitlocker partition, or TrueCrypt, this speeds up disk encryption/decryption
    VT for Directed I/O -If you're running VMWare or other hypervisor/virtual-machine type things this may be useful
    Trusted Execution Technology --probably not a biggie unless you're paranoid about viruses; plenty of systems are just fine without this

    There's the clock-speed difference (minor) and a tiny difference in the max graphics clock-speed (insignificant). Knowing all of this may help you make the decision that's right for you though; if you don't need the extra features, go with the 2410M. If you use disk encryption and virtual machines, go with the 2520M. IMHO, paying more for the 2540M is a waste.
     
    LoneWolf15, Apr 14, 2011
    #5
  6. bdoviack

    bdoviack Notebook Consultant

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    What's strange is that the jpg in a few posts above shows the i7 Processor being slower than the i5. Wonder if it is an error in the testing methodology?
     
    bdoviack, Apr 14, 2011
    #6