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Dell Precision 7540 and 7740 Owner's Thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by djdigitalhi, Aug 13, 2019.

  1. Hopper82

    Hopper82 Notebook Geek

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    For me it's a sort of professional bias: I need to know the limits of what I'm 'driving', even 'computationally' speaking:)
     
  2. va123

    va123 Notebook Enthusiast

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    Ok so here are my system 7540 results after installing 2 ssds and upgrading my ram, and reinstalling windows
    Laptop is under a cooling pad, cpu roughly tested basic undervolt of 0.1v (might be able to go more, have not tested) (Laptop running on power brick)


    Code:
    7540 current windows 1903
    Intel Core i7-9750H
    32GB Kingston HyperX DDR4 3200 C20 2x16GB
    4k Screen
    Nvidia Quadro RTX 3000
    1TB Samsung 970 EVO PLUS
    1TB Intel 660P
    
    -----------------------------------------------------------------------
    CrystalDiskMark 6.0.2 x64 (C) 2007-2018
    -----------------------------------------------------------------------
    Samsung 970 EVO PLUS 1TB     Temps 34C - 56C
    
       Sequential Read (Q= 32,T= 1) :  3528.365 MB/s
      Sequential Write (Q= 32,T= 1) :  3011.461 MB/s
      Random Read 4KiB (Q=  8,T= 8) :  1431.789 MB/s [ 349557.9 IOPS]
     Random Write 4KiB (Q=  8,T= 8) :  1642.337 MB/s [ 400961.2 IOPS]
      Random Read 4KiB (Q= 32,T= 1) :   416.192 MB/s [ 101609.4 IOPS]
     Random Write 4KiB (Q= 32,T= 1) :   346.320 MB/s [  84550.8 IOPS]
      Random Read 4KiB (Q=  1,T= 1) :    39.724 MB/s [   9698.2 IOPS]
     Random Write 4KiB (Q=  1,T= 1) :   109.683 MB/s [  26778.1 IOPS]
    
      Test : 1024 MiB [C: 7.1% (66.1/930.9 GiB)] (x2)  [Interval=5 sec]
        OS : Windows 10 Professional [10.0 Build 18362] (x64)
    
    -----------------------------------------------------------------------
    CrystalDiskMark 6.0.2 x64 (C) 2007-2018
    -----------------------------------------------------------------------
    Intel 660P 1TB     27C - 47C
    
       Sequential Read (Q= 32,T= 1) :  1761.298 MB/s
      Sequential Write (Q= 32,T= 1) :  1752.725 MB/s
      Random Read 4KiB (Q=  8,T= 8) :   590.278 MB/s [ 144110.8 IOPS]
     Random Write 4KiB (Q=  8,T= 8) :   934.919 MB/s [ 228251.7 IOPS]
      Random Read 4KiB (Q= 32,T= 1) :   450.586 MB/s [ 110006.3 IOPS]
     Random Write 4KiB (Q= 32,T= 1) :   414.383 MB/s [ 101167.7 IOPS]
      Random Read 4KiB (Q=  1,T= 1) :    51.893 MB/s [  12669.2 IOPS]
     Random Write 4KiB (Q=  1,T= 1) :   121.287 MB/s [  29611.1 IOPS]
    
      Test : 1024 MiB [D: 4.1% (38.8/953.9 GiB)] (x2)  [Interval=5 sec]
        OS : Windows 10 Professional [10.0 Build 18362] (x64)
    
    HWMonitor
    single core Temps 37C - 105C
    package 1.8W - 89.8W (undervolt 0.1v)
    max single core 4491Mhz
    all core 4-4.1Ghz
    970 evo plus 1Tb Temps 36C - 56C
    intel 660p 1Tb Temps 28C - 47C
    Nvidia Temps 37C - 62C
    Ambient 27C-28C
    
    Recorded through
    Geekbench 4
    UserBenchmark
    CrystalDiskMark
    
    USerBenchmark
    
         Before      After
    CPU     82%      89.7%
    GPU     67%      68.6%
    Drive  202%      277%
    Mem    41.4%     99%
    
    Current GeekBench
    CPU     SC --- 5189   MC ---  22760
    GPU RTX 3000  ----  200319
    
    
    https://www.userbenchmark.com/UserRun/19192520
    https://www.userbenchmark.com/UserRun/19746385
    https://browser.geekbench.com/v4/compute/4502168
    https://browser.geekbench.com/v4/cpu/14495010
     
  3. va123

    va123 Notebook Enthusiast

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    I agree.
    I don't see much wrong with that, I think its an important aspect as to what one should expect. I would even say you could benchmark with battery saving mode just so you know at lowest speeds what your system is equivalent to, and that can help an individual prioritize and know the limits of the system, what to run or what not to run, when plugged vs battery vs say battery saving mode on etc...
     
  4. Don Patrone

    Don Patrone Notebook Enthusiast

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  5. Ionising_Radiation

    Ionising_Radiation ?v = ve*ln(m0/m1)

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    First off... that 'benchmark' site is very unreliable.

    Secondly, the RTX 4000 and RTX 5000 in the Precision 7740 have the same power limit. Performance between the two GPUs will be neck and neck, despite one GPU having so many more shaders than the other.
     
  6. Don Patrone

    Don Patrone Notebook Enthusiast

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    Ok
    Which would you recommend, i play from time to time, but i want to use this workstation the next 4-5 years.
     
  7. Ionising_Radiation

    Ionising_Radiation ?v = ve*ln(m0/m1)

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    RTX 4000 sounds like a good deal. If you'll be satisfied with 1080p 60 FPS gaming, even the RTX 3000 will be sufficient.
     
    Hopper82 likes this.
  8. va123

    va123 Notebook Enthusiast

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    Messed with some undervolting system locks at -0.170v but runs at -0.165v on my 7540 with the
    i7-9750H only ran Cinebench R20 and highest I got was close to 3000
    It will idle at max boost all cores almost, and in R20 for a period will run at 4Ghz all cores, 90W then power throttles to 75W and runs rest at about 3.7Ghz
    also here is AIDA 64 cachmem
    cachemem.png Cin R20 7540 undervolt 0.165.jpg
     
    Last edited: Sep 2, 2019
  9. Hopper82

    Hopper82 Notebook Geek

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    @va123 nice results, seems aligned to what you should expect from your system spec.
    Do you use throttlestop?
     
  10. va123

    va123 Notebook Enthusiast

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    I used intel ETU
    Would throttlestop give me more options?
     
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