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Why did Nvidia stop cramming ridiculous amounts of RAM into laptop GPUs?

Discussion in 'Gaming (Software and Graphics Cards)' started by Peon, Feb 12, 2018.

  1. Peon

    Peon Notebook Deity

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    I mean, if the GTX 680M had 4 GB of RAM and the GTX 880M (which is still just GK104) had 8 GB even though most desktop gamers bought 2 GB versions of the GTX 680, then how come the laptop version of the GTX 1080 doesn't have, say, 16 or even 32 GB of RAM?
     
  2. yrekabakery

    yrekabakery Notebook Evangelist

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    Physical board space constraints.
     
  3. Arrrrbol

    Arrrrbol Notebook Consultant

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    The desktop 1080 has 8GB.
     
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  4. TheDantee

    TheDantee Notebook Evangelist

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    We know but he is refering to 880m/980m where they had 8GB VRAM and the desktop 980 and even 980Ti only had 4GB VRAM... So he seems to be wondering why does the laptop 1080 offer the same VRAM as the desktop model.

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  5. Arrrrbol

    Arrrrbol Notebook Consultant

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    IMO, the 880M and 980M didn't need that much VRAM. There could be any reason why they used 8GB in those cards - perhaps it made logistical sense to do it, possibly they did it for marketing purposes or if you are more inclined to cynicism they did it so they could charge more for them. However if i'm not mistaken the 980M and the Quadro M5000M are pretty much identical (minus the SLI connector). Since workstation tasks can benefit from more VRAM it may be that they deemed it cheaper to produce the same components for both 980Ms and M5000Ms rather than give the 980M a new PCB with less VRAM.
     
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  6. TheDantee

    TheDantee Notebook Evangelist

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    VRAM is useful when needed... So refering to a laptop something u don't upgrade in the case of BGA or something u don't upgrade often in the case of PGA/MXM it's nice to have the extra VRAM there for larger texture files... However you do not need 32GB VRam on one GPU lmao... I have provided an image of 4 Titan Xp running 8K GTA V Redux Mod using 40GB VRAM... Again u need the power of 4 cards to run this smoothly not 1 card... 8b6a75257a73f57c948c8f26abd06bc5.0.jpg

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  7. yrekabakery

    yrekabakery Notebook Evangelist

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    980 Ti has 6GB

    That is some really bad GPU utilization, only 60-70% per card, despite the frame rate being below 60. 2-way would probably perform similarly.

    Also the VRAM counter is borked (this was an Nvidia driver bug a while back) and is showing 4 terabytes of VRAM being used.
     
  8. TheDantee

    TheDantee Notebook Evangelist

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    I'm assuming it as 40GB as there are 4 Titan Xp... Thanks for the 980 Ti correction I must have been thinking of 700 series... When u have Quad SLI I'm sure this is the issue that's also 8K Maxed GTA V with Redux Mod...

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  9. yrekabakery

    yrekabakery Notebook Evangelist

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    Take a look at that screenshot again. 4059176MB * 1GB/1024MB * 1TB/1024GB = ~3.87TB

    3.87TB is a total nonsensical number for VRAM consumption. It was an Nvidia driver bug like I said (I'm assuming that screenshot is from an old ThirtyIR video or something). That's the number tools like AB/RTSS would display regardless of the actual VRAM consumption.

    Anyway, considering that Titan Xp has 12GB, and VRAM does not stack in SLI, anything significantly over 12GB should ring alarm bells.
     
  10. TheDantee

    TheDantee Notebook Evangelist

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    Yes it was a ThirtyIR Video

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