Precision 7530 & Precision 7730 owner's thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by Aaron44126, Jun 27, 2018.

  1. SirTypesALot

    SirTypesALot Notebook Enthusiast

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    I'll give it a shot on Monday.
     
  2. kaann

    kaann Notebook Enthusiast

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    Hi, I'm a cad designer and i use Nx and Solidworks.
    I'm in conflict between Lenovo P72 and Dell 7730.
    Same specs and almost same price.
    Xeon E-2186M 1TB NVMe 64GB ecc RAM NVIDIA P5200 UHD

    Which one would you choose?
    Especially for UHD screen i want to know your experiences.

    Regards,
     
  3. XeonPlanner

    XeonPlanner Notebook Guru

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    I recommend 7740 of P73 so you can take advantage of 8 core and RTX graphics. But I only have a 7530 so I can't recommend any of the two to you.
     
  4. kaann

    kaann Notebook Enthusiast

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    All benchmarks say P5200 much better than RTX 5000 for siemens nx, catia and Solidworks. All these applications use single core during design. I make simulation very seldom so more core is not important. I wonder 4k 17.3 screen in fact. Hd or uhd I'm in conflict.
     
  5. xklis

    xklis Notebook Consultant

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    AU Optronics B173ZAN01.0 is the 17.3" UHD panel you will find on both 7730 and P72.

    7730--->http://forum.notebookreview.com/thr...30-owners-thread.820539/page-72#post-10785890

    P72--->https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/P72-sRGB-compatibility-mode/td-p/4253273
    https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/P72-4k-display/m-p/4230080

    And even if you decide to purchase 7740/P73 with UHD display, you will end up with the same exact model !

    7740
    https://www.51nb.com/review/20190816/961.html
    https://www.51nb.com/d/file/p/20190816/dce9f1ee8aacfb23dc293fbac837c1c4.jpg
    http://forum.notebookreview.com/thr...40-owners-thread.830037/page-13#post-10947472

    P73
    https://www.51nb.com/review/20190914/1145.html
    https://www.51nb.com/d/file/p/20190914/7393fa684e3ba1a946aed601635a92ca.png

    AU Optronics B173ZAN01.0 is a 8-bit panel (not 10-bit as lenovo used to advertise it on its p72
    (just see on https://www.lenovo.com/us/en/laptops/thinkpad/thinkpad-p/ThinkPad-P72/p/22WS2WPWP72 the description: 17.3” UHD 4K (3840 x 2160) IPS, anti-glare, 400nits, 100% Adobe color gamut, 10-bit color depth)

    infact on new P73 they have changed to:
    17.3" UHD (3480 x 2160) IPS, anti-glare with Dolby Vision™ HDR, 400 nits, 100% Adobe color gamut
    https://www.lenovo.com/us/en/laptops/thinkpad/thinkpad-p/ThinkPad-P73/p/22WS2WPWP73

    Remember: it's just the same exact panel !

    So the point is:
    Have you ever used solidworks,catia,siemens nx on a notebook with a 4k 17.3" panel before ?
    If so, have you ever experienced any scaling issues like blurred interfaces or tiny buttons ?

    Dell 7530/7730 FHD displays unfortunately are 6-bit only, so like many users complained on this topic you may easily encounter 'banding' issues expecially on monochromatic pictures.

    User Hopper82 has purchased a 7740 with FHD display and hwinfo shows that it's a 8-bit panel (http://forum.notebookreview.com/thr...ecs-release-date.827802/page-27#post-10946454)

    The same exact panel was also on dell 7730 but it was a 6-bit version !
    (http://forum.notebookreview.com/thr...0-owners-thread.820539/page-163#post-10835786)

    See also my post here and t456 answer just right below for further info.

    So it looks like dell is offering updated panels on 7740.

    According to this review--->https://www.51nb.com/review/20190821/995.html

    [​IMG]

    In SPECgpc V12.1 benchmark test you can see the following results:

    *[7740 scores down below are achieved with 'dgpu mode' (so igpu is disabled)]*

    Sw-03
    7740 with RTX 5000--->176.86
    7730 with P5200-------->164.16 so 7.74% more than p5200

    Snx-02
    7740 with RTX 5000--->212.19
    7730 with P5200-------->189.45 so 12% more than p5200

    Catia-04
    7740 with RTX 5000--->195.01
    7730 with P5200-------->167.94 so 16.12% more than p5200

    So not actually 'dramatic' improvements but i don't really see how rtx5000 should perform less than p5200.
    Important thing to consider: nvidia has improved the fabrication process going from pascal P5200 (16nm) to turing RTX5000 (12nm).
    This translates to better performances with less power consumption leading to lower gpu temps on RTX5000.

    May i ask you what type of assemblies are you used to work with your softwares ?
    How many parts ? What type of 'real view' do you use in terms of image details ?

    Have you ever gone above 8 gb of vram while modelling/rendering ?
    If not, p4200 or rtx 4000 might be a better choice in terms of performance/cost ratio.

    Unless your simulations are very long and intensive and your workflows strongly rely on them even the few times you run them, i suggest you to go for 'normal cpu' like 8850H (has partial unlocked multiplier, up to +400mhz on each core) or 8950HK (multiplier fully unlocked) if you get a nice discount on it + 2x32gb or 4x16gb ddr4 ram @2666mhz.
    xeon requires ecc ram+win 10 pro for workstations: this 'chain' is very expensive.

    In conclusion: if i were you i would buy 7740 with the following specs:

    FHD display with the aluminum lid (to avoid any kind of scaling problem and save some money)
    i7-9850H (you value st performances more than number of cores, so take this also because it has partial unlocked multiplier (like 8850H) so you may reach higher frequencies if you have thermal/power headroom).
    RTX 4000 (go for RTX 5000 only if you need more than 8gb of vram; they're both capped at same tdp of around 110W so $1000 more for a slight increase in performances are not worth)
    8gb ram
    256 gb ssd nvme
    Intel AX200
    Ubuntu Linux 18.04
    (search for a cheap win10pro license on ebay)

    Take minimum ram and storage (dell prices are quite steep) and add your own.
    hyperx@2666mhz cl15 + samsung evo plus m.2 nvme and you're good to go.
     
    Last edited: Oct 10, 2019
  6. Aaron44126

    Aaron44126 Notebook Virtuoso

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    Xeon doesn't require ECC memory.
    (But there's not really any point to getting one without it, because ECC memory support is the only selling point for the Xeon chips as far as I am aware; unless you think you might want to upgrade to ECC memory later.)
     
    Last edited: Oct 10, 2019
  7. xklis

    xklis Notebook Consultant

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    Yes, you're right. I was thinking your way but i wrote the 'wrong' way.

    This should be correct:
    Ecc ram requires xeon cpu+win10 for workstations in order to use its peculiarity.
     
  8. Div033

    Div033 Notebook Consultant

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    Wow, didn't know the 7540 had an 8 bit panel! Wonder if I can swap out my 7530's with it... Only issue is I'd need the touch version, which costs considerably more.

    Now I regret not waiting til the second gen of the new chassis :|
     
  9. XeonPlanner

    XeonPlanner Notebook Guru

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    Just updated to windows 10 1903. Power draw when using office rises from 15w to 20w, and battery life shortens from 6h to 4.5h. Also, opening an empty Adobe Illustrator file doesn't seem to work, but opening an empty Adobe Premiere Pro brings power draw down to 10-12w, and battery life goes to 7 hours.
    Very weird indeed. Anyone has upgraded to windows 10 1903? Can you share your power draw data?
     
  10. frostbytes

    frostbytes Notebook Consultant

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    Can any of you recommend a laptop bag suitable for the 7730? Many of the ones I've looked at (and the Amazon Basics one that I've been using) have a padded sleeve that's too narrow for the 7730's width. 15" bags are aplenty. 17", not so much.
     
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