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Performance Test 10 broken?

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  • Performance Test 10 broken?

    I compared two Thinkpad laptops, older T470s, and newer T580, and on my surprise, T470s have higher score than T580, even though T580 is much faster device, because it has 4 core processor (T470s has 2 core i5 7200u, and T580 has 4 core i5 8250u). In everyday work you can notice lack of 2 cores, and everything is slightly laggy on T470s, and especially if you put on some workload (multiple applications open, Outlook, Excel, Word, Chrome with multiple tabs...), T470s can come to a crawl, while it's not the case with T580.

    I think you need to change how you calculate final score, here T470s has slightly better scores in 3D, mem and much better score in disk benchmarks, and that is reason why the final score is bigger in the end. For example T470s has SSD with score of 13221, and T580 scored 8234, and I guess that is main reason for T470 victory here, but in real life (working in Windows) you don't see that speed difference for SSD, but you certainly feel the difference in cpu speed...

    T470s:
    Click image for larger version

Name:	Passmark10 2005 Lenovo T470s i5-7200u 2x4gb 256gb nvme st 1860.png
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    T580s:
    Click image for larger version

Name:	Passmark10 1949 Lenovo T580 i5-8250u 1x8GB 256GB nvme.png
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ID:	51135



    Specificatons:
    T470s - i5 7200u, 2x4GB (DDR4 2133), 256GB nvme (Samsung PM961)
    T580 - i5 8250u, 1x8GB (DDR4 2400), 256GB nvme (Samsung PM981 - it comes factory installed via a bay adapter in the 2.5-inch SATA drive bay)



  • #2
    It seems the T470 is objectively a faster machine (overall). Much faster disk, much faster dual channel RAM, which probably in turn gives slightly faster 2D and 3D as well (as the single thread performance is fairly close).

    I really don't understand why vendors install single channel RAM just to save a few dollars.

    But yes, if you are only doing multi-threaded CPU bound tasks the T580 will seem much quicker.

    Unfortunately it isn't possible to reflect the all aspects of a machine's performance in a single number. If you are only interested in multi-threaded CPU performance, then just look at CPUMark and ignore other numbers.

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