nvidia image sharpening and integer scaling

Discussion in 'Videocards - NVIDIA GeForce Drivers Section' started by hemla, Nov 21, 2019.

  1. hemla

    hemla Member Guru

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    The question is, does NVCPL image sharpening add input lag and does it work off CPU or GPU(or whichever it taxes more). Also how taxing is it on newer games, performance wise of course.

    Also, does integer scaling work with older GTX video cards or not? I've heard some people were trying to do some mod for non-RTX cards for it but did they succeed?

    Oh btw, I am not talking about input lag caused by uncapped FPS reduction.
     
    Last edited: Nov 21, 2019
  2. SSJBillClinton

    SSJBillClinton Master Guru

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    I've been using integer scaling recently for playing some rhythm games that are locked 1280x720, and it appears to work off the GPU with little to no performance impact.

    For reference, hitting a note "perfectly" in said rhythm games involves pressing the button within a 2 frame window (games run at 60 locked), and I've had no difficulty hitting a good 95% of 1000 notes within the 2f timing window with integer scaling on vs off. Of course there may be some input lag induced, but I'm 99.99% sure I would have noticed if there was given I've been playing these games for 10+ years.
     
  3. hemla

    hemla Member Guru

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    Good to know, albeit I didn't ask about integer scaling and input lag relation.
     
  4. SSJBillClinton

    SSJBillClinton Master Guru

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    Oh lmao you're right, I just read the title and got tunnel vision, my bad.

    I'll try forcing sharpening and give them a go just so I haven't entirely gone on about nothing. ;)
     

  5. SSJBillClinton

    SSJBillClinton Master Guru

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    Just gave it a go, no perceivable lag on my end.
     
  6. hemla

    hemla Member Guru

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    AFAIK it's post process, so it should add a bit but not much. Stiller wondering is it being generated by using GPU or CPU resources more, ReShade sharpeners are CPU bound.
     
  7. Astyanax

    Astyanax Ancient Guru

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    this is nonsense, all reshade filters are gpu processed.
     
  8. hemla

    hemla Member Guru

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    I always thought so, but whenever I launch reshade and start to monitor CPU/GPU usage, the CPU is also going up. In case of huge CPU/GPU speed disparities in CPU bound apps, like in my case it can hit the CPU ceiling much earlier.
     

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