GTX 1070/1080 + 680 for PhysX. Yes or No?

Discussion in 'Videocards - NVIDIA GeForce' started by Solfaur, Jun 14, 2016.

  1. Solfaur

    Solfaur Ancient Guru

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    So as some of you know I used to run 2x970s, sold one in anticipation for the new Pascal cards, and will sell the second an go single GPU for the first time in years. However, I realized I still have an old 680 lying around, so I installed it and set it as dedicated PhysX card along my (still) 970.

    Only game I could think of that had a in-game benchmark and used heavy PhysX was Mafia 2, and the difference between dedicated PhysX GPU VS no-dedicated PhysX GPU was huge, 75.5 fps vs 15 fps average.

    Now my question is, do you think it's worth it to keep this card popped when I get my 1070/1080 (likely 1070) or is having a dedicated PhysX GPU obsolete for 2016?

    For some reason MSI AB doesn't recognize the 680 so the fans run quite loud, nvidia and windows sees it fine though, also a thing to consider, besides of course the very limited number of games that take advantage of it. Seriously, I'm SO pissed that Witcher 3 with that super demanding nvidia PhysX HairWorks doesn't want to use GPU, but only CPU even if you have a dedicated card. And it would help a LOT, as it's by far the biggest performance hog! :bang:
     
  2. Aelders

    Aelders Banned

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    Don't bother I say, the games that use it are few, and at this point the 680 will be so slow relative to your 1070/1080 that I don't think it will be beneficial
     
  3. Solfaur

    Solfaur Ancient Guru

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    It's funny because I have 100s of hours in Borderlands series but I always preferred to keep the SLI, even though those games too benefit a lot from dedicated PhysX. Same for Batman, though I still have to play the latest one there.

    Also, after a restart MSI AB is recognizing the 680, and holy hell I forgot how advanced this card is and how many sensors it has for AB OSD compared to my measly MSI 970 Gaming 4G.

    The 680 is the MSI Lighting beast, I would take a picture, the 970 looks like a cheap sagging whore compared to a top class escort. And no joke, the 970 is sagging like 80 year old's tit, since it has no backplate and it's like 3 cm shorter as well and overall smaller. The 680 has no sag whatsoever despite its massive size. :giggle2:
     
  4. Amaze

    Amaze Ancient Guru

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    Pretty sure I saw tests that showed using a 2nd card for Physx can give worse performance in some cases.
     

  5. Han2K

    Han2K Master Guru

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    Space, heat and extra power consumption for a marginal improvement in the best case scenario? No, no, no. :no:
    If you still go ahead at least don't put the card it in the same PCie channel as the main one cause it will ocuppy half the lanes.
     
  6. NHK

    NHK Active Member

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    I get the impression that Physx is on its way out, and will be dropped eventually, hopefully more like it.

    I don't even bother installing the Physx software during a new driver install, less bloatware.

    It was a great idea at the time, but it's closed nature just stifled adoption, and
    just made it more or less a gimmick. With DX12 & Vulkan, I see it becoming even
    more irrelevant moving forward.
     
  7. Solfaur

    Solfaur Ancient Guru

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    Yeah me too, I will keep the 680 in with my 970 until I get my hands on a 1070/1080 for the fun of it. It's not like it uses that much power in this state and besides I'm on X99 so the primary gpu is still running at 16x pcie 3.0 anyway...

    If it would have benefited in Witcher 3, I would have definitely kept the PhysX card in, but looking precisely at Witcher 3, I can see that more than likely every future game that will have PhysX will use CPU so it's indeed pretty pointless.
     
  8. flash22

    flash22 Active Member

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    Did you ever end up testing the 970 physx setup with ur 1070?
     
  9. Solfaur

    Solfaur Ancient Guru

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    Nah, I've sold both 970s. I still have the 680, but it's pointless to put it in along my 1070, as there are almost no physix games out there anymore that would have a benefit. :(
     
  10. Han2K

    Han2K Master Guru

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    There are lots of games that don't claim PhysX support but they use NVIDIA Physix Libraries forced by software (no hw support). You can see the dll's along with the rest of binaries.

    i.e. Almost all UE3 games, The Witcher 3, Rocket League.
     

  11. Pyrage

    Pyrage Master Guru

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    You can count the games (modern anyway) that make heavy use of PhysX with one hand, and the 1070 is already pretty overkill for those.

    Keeping an extra card just for PhysX feels like a waste of energy imo. And it wouldn't do your 1070 any favors, the extra heat would probably help the 1070 temp throttle faster.
     
  12. Solfaur

    Solfaur Ancient Guru

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    Neither of those use a PPU dedicated card, but CPU to do the PhysX. Hell, I'd pop in the 680 in a heartbeat to have a benefit in Witcher 3 with Hairworks, but sadly, it doesn't.

    I know, hence why I didn't pop it in at all since I have my 1070. I'll just keep the 680 as an emergency card... :giggle2:
     

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