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    Nvidia Announces GeForce 400M Series Graphics Discussion

    Discussion in 'Notebook News and Reviews' started by Charles P. Jefferies, Sep 7, 2010.

  1. Charles P. Jefferies

    Charles P. Jefferies Lead Moderator Super Moderator

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    Last edited by a moderator: May 7, 2015
    Charles P. Jefferies, Sep 7, 2010
    #1
  2. IKAS V

    IKAS V Notebook Prophet

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    All I have to say is FINALLY!
     
    IKAS V, Sep 7, 2010
    #2
  3. anothergeek

    anothergeek Equivocally Nerdy

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    +140mhz (460M) vs +96 shaders (470M)

    I wonder if the 470M will actually be any faster than the 460M. I also wonder if the 480M is already obsolete. The 480M was clocked at only 450mhz, but had a whopping 352 shaders and 256-bit memory bus.
     
    anothergeek, Sep 9, 2010
    #3
  4. equilibrium1736

    equilibrium1736 Notebook Geek

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    The main advantage I see here is the addition of optimus to the enthusiast line. With some luck we might be able to finally get decent battery life on a powerful laptop.
     
    equilibrium1736, Sep 9, 2010
    #4
  5. thundernet

    thundernet Notebook Deity

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    :D :D :D Great News :D :D :D
     
    thundernet, Sep 10, 2010
    #5
  6. rogue75

    rogue75 Newbie

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    Hi,

    Just bought an ACER 4741G i3 DDR3 4GB with 1gb GeForce Optimus GT 420 M, which surprisingly very slow and get only 4.1 in Win7 x64 desktop performance with Graphic as the lowest part. This is to compare with ACER 4738 i3 DDR3 2GB with 512mb ATI RADEON HD 5470 which points higher at 5.0 for Graphic performance. Although NVIDIA lost in Graphic, it is slightly higher in Gaming by 0.3 to RADEON (not much judging from mems difference).

    I know that Acer 4741G comes with 2 adapters: 128mb onboard intel graphic and GT 420M. Looks like Windows only use the onboard adapter and therefore performs badly.

    Is there a way to boost performance? will turning off the onboard causes Windows to automatically use NVIDIA?

    Please reply as it is frustating to spend more money on expensive adapter only to get low performance compare to cheaper one!
     
    rogue75, Dec 30, 2010
    #6
  7. jeremyshaw

    jeremyshaw Big time Idiot

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    Ignore the WEI score. It's useless. It only tests memory bandwidth of the GPU (fillrate is directly related to this).

    However, WEI doesn't test the nVidia GPU's own memory, so ignore the score.
     
    jeremyshaw, Dec 30, 2010
    #7
  8. rogue75

    rogue75 Newbie

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    Okay, ignored. But performance can't lie: slower response is noticeable due to optimus chooses onboard for windows operations and only switch to nvidia for 3D gaming. I'm thinking of disabling the onboard, will it force optimus to pick nvidia and I can get better windows response?
     
    rogue75, Dec 30, 2010
    #8
  9. Judicator

    Judicator Judged and found wanting.

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    No, because Optimus means that all the NVidia output is fed through the onboard. Either the NVidia card is off, and you work purely off the onboard, or the NVidia card is on, sends its data to the onboard, which then displays it on the screen. So by disabling the onboard, you disable the whole graphics system (essentially). It's kind of the same way some electric cars work; the wheels are powered by the electric motors (onboard graphics), and while you can get a boost from the gas engine (NVidia card), if you turn off the electric motors, the car will no longer run.

    I think there are ways you can force it to use the NVidia card for specific applications, but I think it's only on a case by case basis.
     
    Judicator, Dec 31, 2010
    #9
  10. NewAgeMessiah

    NewAgeMessiah Notebook Consultant

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    I cannot reiterate this enough, cant wait at all :)
     
    NewAgeMessiah, Jan 1, 2011
    #10