*** Official Clevo P640RE/Sager NP8640 Owner's Lounge ***

Discussion in 'Sager/Clevo Reviews & Owners' Lounges' started by NordicRaven, Sep 15, 2015.

  1. Ionising_Radiation

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

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    I'm confused, now. Is this laptop Optimus-ed, or MUXed? Or, somehow, both?
     
    TomJGX and Kaozm like this.
  2. Kaozm

    Kaozm Notebook Evangelist

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    Go look in the mirror, light 4 candles, and repeat Prema Prema Prema, HE might show up! haha :p Don't! Say Candyman!!!

    I think we have to wait and see tho.. :(
     
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  3. Stooj

    Stooj Notebook Deity

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    The quick and dirty of Optimus. Nvidia GPU -> Intel iGPU frame-buffer -> Output (screen). Basically the NV GPU doesn't actually connect to a screen at all and is simply called upon to render 3D stuff "through" the Intel GPU. Thus, when it's not being used, it's off and basically running Intel GPU only.
     
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  4. Stooj

    Stooj Notebook Deity

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    It's Optimus, no mention of the dGPU mode.

    The P650RE/RG got a MUX chip so it can switch between Optimus/MSHYBRID and dedicated GPU mode solely to get G-Sync working (G-Sync requires the NV gpu connected to the screen).

    EDIT: Prema's post over on TechInferno seems to imply the P640RE may get a MUX chip. No idea why though. Outside some minor compatibility benefits from being able to run dGPU only, I wouldn't think it'd be worth the cost.

    UNLESS, they intend on dropping a G-Sync panel in the P640RE at some point.....
     
    Last edited: Nov 2, 2015
  5. jaybee83

    jaybee83 Biotech-Doc

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    yup, im guessing theyre working on licensing 14inch gsync panels :) dgpu mode is nice to be able and overclock the display refresh rate :)

    Sent from my Nexus 5 using Tapatalk
     
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  6. Prema

    Prema Your Freedom, Your Choice

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    MSHYBRID ≠ OPTIMUS

    I guess they simply re-use the P6xxRs base design, re-designing for only a single model would be more costly...but just double checked its minus the MUX, so no direct dGPU mode on the "WAVE".
     
    Last edited: Nov 3, 2015
  7. Ionising_Radiation

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

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    Damn. That means definitely no G-Sync. What exactly is MSHYBRID in the first place?
     
  8. HTWingNut

    HTWingNut Potato

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    That's what I was asking. But from what I can gather it likely requires DirectX 12 which means Windows 10.
     
  9. XMG

    XMG Company Representative

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    MSHYBRID is in essence Optimus. Nvidia stopped officially calling it Optimus two generations ago, but you can for simplicity's sake say that they are the same thing.

    G-Sync is only possible with a direct connection from dGPU to the display, which Optimus and MSHYBRID rule out as they channel through the iGPU.
     
  10. Meaker@Sager

    Meaker@Sager Company Representative

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    Adding it in would make the PCB more complicated and bump up the cost in quite a price sensitive market.
     
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